The United States Assay Commission was an agency of the
U.S. federal government from 1792 to 1980. Its function was to supervise the annual
testing of the gold, silver, and (in its final years)
base metal coins produced by the
United States Mint
The United States Mint is a bureau of the United States Department of the Treasury, Department of the Treasury responsible for producing coinage for the United States to conduct its trade and commerce, as well as controlling the movement of bull ...
to ensure that they met specifications. Although some members were designated by statute, for the most part the commission, which was freshly appointed each year, consisted of prominent Americans, including
numismatist
A numismatist is a specialist, researcher, and/or well-informed collector of numismatics, numismatics/coins ("of coins"; from Late Latin , genitive of ). Numismatists can include collectors, specialist dealers, and scholar-researchers who use coi ...
s. Appointment to the Assay Commission was eagerly sought after, in part because commissioners received a commemorative medal. These medals, different each year, are extremely rare, with the exception of the 1977 issue, which was sold to the general public.
The
Mint Act of 1792 authorized the Assay Commission. Beginning in 1797, it met in most years at the
Philadelphia Mint. Each year, the president appointed unpaid members, who would gather in Philadelphia to ensure the weight and fineness of silver and gold coins issued the previous year were to specifications. In 1971, the commission met, but for the first time had no gold or silver to test, with the end of silver coinage. Beginning in 1977, President
Jimmy Carter
James Earl Carter Jr. (October 1, 1924December 29, 2024) was an American politician and humanitarian who served as the 39th president of the United States from 1977 to 1981. A member of the Democratic Party (United States), Democratic Party ...
appointed no members of the public to the commission, and in 1980, he signed legislation abolishing it.
History
Founding and early days (1792–1873)
In January 1791,
Treasury Secretary Alexander Hamilton
Alexander Hamilton (January 11, 1755 or 1757July 12, 1804) was an American military officer, statesman, and Founding Fathers of the United States, Founding Father who served as the first U.S. secretary of the treasury from 1789 to 1795 dur ...
submitted a report to
Congress
A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...
proposing the establishment of a
mint. Hamilton concluded his report:
In response to Hamilton's report, Congress passed the
Mint Act of 1792. In addition to setting the standards for the new nation's coinage, Congress provided for an American version of the British
Trial of the Pyx:
The following January, Congress passed legislation changing the date on which the designated officials met to the second Monday in February. Meetings did not take place immediately; the Mint was not yet striking gold or silver. Minting of silver began in 1794 and gold in 1795, and some coins were saved for assay: the first Mint document mentioning assay pieces is from January 1796 and indicates that exactly $80 in silver had been put aside. The first assay commissioners did not meet until Monday, March 20, 1797, a month later than the prescribed date.
Once they did, annual meetings took place each year until 1980, except in 1817 as there had been no gold or silver struck since the last meeting (until 1837, the commission examined the coins since the last testing, rather than for a particular calendar year).

In 1801, the usual meeting was delayed, causing
Mint Director Elias Boudinot to complain to President
John Adams
John Adams (October 30, 1735 – July 4, 1826) was a Founding Fathers of the United States, Founding Father and the second president of the United States from 1797 to 1801. Before Presidency of John Adams, his presidency, he was a leader of ...
that depositors were anxious for an audit so the Mint could release coins struck from their bullion. Numismatist Fred Reed suggested that the delay was probably due to poor weather, making it difficult for officials to travel from the new capital of
Washington, D.C., to Philadelphia for the assay.
In response, on March 3, 1801, Congress changed the designation of officials required to attend to "the district judge of Pennsylvania, the attorney for the United States in the district of Pennsylvania, and the commissioner of loans for the State of Pennsylvania". The meeting finally took place on April 27, 1801. The 1806 and 1815 sessions were delayed because of outbreaks of disease in Philadelphia; the one in 1812 was held a month late because of a heavy snowstorm which prevented the commissioners from reaching the Mint. No meeting took place in 1817; a fire had damaged the
Philadelphia Mint in January 1816, and no gold or silver awaited the commission. In 1818, Congress substituted the Collector of the Port of Philadelphia for the Pennsylvania loans commissioner as a member of the Assay Commission. With the
Coinage Act of 1834, Congress removed the automatic disqualification of Mint officers in the event of an unfavorable assay, leaving the decision to the president.
The Mint Act of 1837 established the Assay Commission in the form it would have for most of the remainder of its existence. It provided that "an annual trial shall be made of the pieces reserved for this purpose
'i.e.'', set aside for the assayat the Mint and its branches, before the judge of the district court of the United States, for the eastern district of Pennsylvania, the attorney of the United States, for the eastern district of Pennsylvania, and the collector of the port of Philadelphia, and such other persons as the President shall, from time to time, designate for that purpose, who shall meet as commissioners, for the performance of this duty, on the second Monday in February, annually". The usual procedure for members of the public to be named to the commission after public appointments began was for the Mint Director to send the president a list of candidates for his approval. According to Jesse P. Watson in his monograph on the Bureau of the Mint, the admission of members of the public to the Assay Commission meant "that permanency and high official dignity were no longer characteristic of the commission".
In 1861, as the
American Civil War
The American Civil War (April 12, 1861May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States between the Union (American Civil War), Union ("the North") and the Confederate States of A ...
broke out, North Carolina joined the
Confederate States. The
Charlotte Mint, taken over by the Confederacy, eventually closed as the
dies that had been shipped from the Philadelphia Mint wore out, and it could obtain no more. Nevertheless, 12
half eagles ($5 gold coins) were sent from
Charlotte to Philadelphia, through enemy lines, in October 1861. They were duly tested by the 1862 Assay Commission, and were found to be correct.
In 1864, with the metal nickel, used in
the cent in short supply, Mint Director
James Pollock asked that year's commission to opine on a substitute for the copper-nickel used in the cent. The members endorsed French bronze (95% copper and 5% tin or zinc) as a metal to be used in the cent and a proposed
two-cent piece. Pollock sent the conclusions to Treasury Secretary
Salmon P. Chase, who forwarded them (and draft legislation) to Maine Senator
William P. Fessenden, chairman of the
Senate Finance Committee.
The
Coinage Act of 1864
The Coinage Act of 1864 was a United States federal law passed on April 22, 1864, which changed the composition of the Cent (United States coin), one-cent coin and authorized the minting of the Two-cent piece (United States coin), two-cent coin. ...
was signed by President
Abraham Lincoln
Abraham Lincoln (February 12, 1809 – April 15, 1865) was the 16th president of the United States, serving from 1861 until Assassination of Abraham Lincoln, his assassination in 1865. He led the United States through the American Civil War ...
on April 22, 1864.
Later years (1873–1949)

The
Coinage Act of 1873 revised the laws relating to coinage and the Mint and retired several denominations including the two-cent piece. The act also changed the officers required to serve on the Assay Commission:
The act also required the Mint to put aside one of every thousand gold coins struck, and one of every two thousand silver coins for the assay. It provided the procedure for putting the coins aside, sealing them in envelopes, and placing them in a
pyx to be opened by the assay commissioners.
The 1881 Assay Commission found that approximately 3,000 silver dollars struck at the
Carson City Mint (1881-CC) had been struck in .892 silver rather than the legally mandated .900. It is unclear if the Treasury took any steps to attempt to recover the issued pieces. The 1885 commission detected a single silver dollar which was 1.51
grains
A grain is a small, hard, dry fruit ( caryopsis) – with or without an attached hull layer – harvested for human or animal consumption. A grain crop is a grain-producing plant. The two main types of commercial grain crops are cereals and le ...
(0.098 g) below specifications, the permitted tolerance being .
In 1921, the Assay Commission found that some coins struck at the
Denver Mint were struck in .905 or .906 silver, above the legal .900 by more than the permitted tolerance. Investigation found that ingots which had been rejected and were intended for melting had instead been used for coin.
In the early 20th century, the
San Francisco Mint struck silver coins for the
Philippines
The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...
, then a US possession; those pieces were included in the assay.
Proof coins struck by the Mint for collectors were included in the assay; pieces struck under contract with foreign governments were not.
The pyx was a rosewood box, square, of European work, and sealed by heavy padlocks. It was not filled by the coins put aside for the 1934 Assay Commission, of which there were 759 with a total face value of $12,050.
This had increased by 1940 to 79,847 coins, all silver as gold coins were no longer being struck,
and by 1941, many reserved coins could not be kept in the pyx, instead being placed in packing boxes, overflowing with sealed envelopes.
By the late 1940s, more than ten million coins were being struck each day at Philadelphia alone;
in 1947, Congress reduced the number of silver coins required to be put aside for assay from one in 2,000 to one in 10,000.
This was done at the urging of the Department of the Treasury, as having to store so many assay coins was a burden to the Mint, and it felt that the number of coins available to the commission would still be sufficient.
Final years and abolition (1950–1980)

By the 1950s, there was considerable competition among numismatists to be appointed an assay commissioner. Appointees received no compensation, but the appointment was prestigious and carried with it a prized
assay medal. The procedure was changed so that the Mint Director submitted the names of more individuals than would actually be appointed to the
White House
The White House is the official residence and workplace of the president of the United States. Located at 1600 Pennsylvania Avenue Northwest (Washington, D.C.), NW in Washington, D.C., it has served as the residence of every U.S. president ...
, where the final choices were made. It remained possible for the director to ask for special consideration for certain individuals. Later nominations were also screened by the
Federal Bureau of Investigation
The Federal Bureau of Investigation (FBI) is the domestic Intelligence agency, intelligence and Security agency, security service of the United States and Federal law enforcement in the United States, its principal federal law enforcement ag ...
and by the
IRS
The Internal Revenue Service (IRS) is the revenue service for the Federal government of the United States, United States federal government, which is responsible for collecting Taxation in the United States, U.S. federal taxes and administerin ...
. The Mint Director received nominations for assay commissioner from legislators, political organizations, government officials, and from members of the public.
In 1971, for the first time, the Assay Commission had no silver coins to test; none were struck by the Mint for circulation in 1970.
Although part-silver
Kennedy half dollars were struck in 1970, they were only for collectors and were not put aside for assay. Commissioners could instead test 21,975 dimes and 11,098 quarters, all made from copper-nickel clad,
though as the
Associated Press
The Associated Press (AP) is an American not-for-profit organization, not-for-profit news agency headquartered in New York City.
Founded in 1846, it operates as a cooperative, unincorporated association, and produces news reports that are dist ...
, reporting on the 1973 Assay Commission, put it, "a discovery of a bum coin hasn't occurred in years."
Only one in every 100,000 clad or silver-clad pieces was put aside for the Assay Commission, and only one in every 200,000 dimes. At the 1974 meeting, one copper-nickel
Eisenhower dollar was discovered which weighed below specification; after reference to the rules, the coin was deemed barely within guidelines. Numismatist Charles Logan, in his 1979 article about the impending end of the Assay Commission, stated that this incident pointed out "the basic problem with the annual trial. First, the members were not exactly sure how their job was done, or what the requirements were. Second, they really did not want to report a fault in the coinage. Finally, even if the one dollar coin had been found faulty,
t would have hadlittle consequence, except to prompt greater vigilance at the Mint."
In early 1977, outgoing Mint Director
Mary Brooks sent a list of 117 nominees to the new president,
Jimmy Carter
James Earl Carter Jr. (October 1, 1924December 29, 2024) was an American politician and humanitarian who served as the 39th president of the United States from 1977 to 1981. A member of the Democratic Party (United States), Democratic Party ...
, from which it was expected that about two or three dozen names would be selected. Carter refused to make any public appointments, feeling the Assay Commission was unneeded given that the Mint performed the same work through routine internal checks and that the $2,500 appropriated each year was a poor use of taxpayer money. Only government members served on the Assay Commission in 1977–1980.
Even so, hundreds of numismatists applied to be on the 1978 commission. Carter made no appointments that year; the only members were those designated by statute.
The 1979 meeting, attended by the government-employed commission members and Mint Director
Stella Hackel Sims, was held eight days late on February 22 due to schedule conflicts.
In June 1979, Carter's Presidential Reorganization Project recommended the abolition of the Assay Commission and two other small agencies. The report estimated that having an Assay Commission cost the federal government about $20,000 and that the work was done better by vending machine manufacturers to avoid having their machines jam.
In August, columnist
Jack Anderson deemed the commission an example of wasteful spending in Washington, characterizing its activities, "more than a decade ago, the government stopped putting either gold or silver in its coins—but the commission continues to hold its annual luncheon meeting. Solemnly, the commissioners measure the amounts of nonprecious metals in U.S. coins, and strike a medal to commemorate their activities. This useless exercise costs the taxpayers about $20,000 a year."
As coin collector and columnist Gary Palmer put it in 1979, "who really cares if the weight of a cupro-nickel quarter is off by a grain or two?"
On March 14, 1980, Carter approved legislation abolishing the Assay Commission, as well as the other two agencies, as recommended by his Reorganization Project. The President wrote in a
signing statement
A signing statement is a written pronouncement issued by the President of the United States upon the signing of a bill into law. They are usually printed in the Federal Register's '' Compilation of Presidential Documents'' and the '' United State ...
that with the end of gold and silver coinage, the need for the commission had diminished.
Numismatic leaders objected to the ending of the commission, considering the expense small and the tradition worth keeping, although they concurred the commission "had become an anachronism".
At the time of its abolition, the Assay Commission was the oldest existing government commission. In 2000 and 2001, New Jersey Congressman
Steven Rothman introduced legislation to revive the Assay Commission, stating that re-establishing the commission would assure public confidence in the gold, silver, and platinum
bullion coins struck by the Mint. The bills died in committee.
Functions and activities

The general function of the Assay Commission was to examine the gold and silver coins of the Mint and ensure they met the proper specifications. Assay commissioners were placed on one of three committees in most years: the Counting, Weighing, and Assaying Committees. The Counting Committee verified that the number of each type of coin in packets selected from the pyx matched what Mint records said should be there. The Weighing Committee measured the weight of coins from the pyx, checking them against the weight required by law. The Assaying Committee worked with the Philadelphia Mint's assayer as he measured the precious metal content of some of the coins.
In some years there was a Committee on Resolutions—in 1912, it urged that a leaflet be published for visitors to
the Mint's coin collection, and that a medal be struck to commemorate the collection. The full Assay Commission adopted that committee's report.
Congress in 1828 had required that the weights kept by the Mint Director be tested for accuracy in the presence of the assay commissioners each year. By statute passed in 1911, the commission was required to inspect the weights and balances used in assaying at the Philadelphia Mint, and to report on their accuracy. This included the government's official standard pound weight that had been brought from the United Kingdom.
According to a description of the 1948 meeting, silver coins selected for assay were first placed between steel rollers until the thickness was reduced to , and then were chopped into fine pieces and dissolved in nitric acid. The fineness of the silver in the coin could be determined by the amount of salt solution needed to precipitate all the silver in the liquid.
Numismatist Francis Pessolano-Filos described the work of the Assay Commission:
The commission operated under rules first adopted by the 1856 commission, and then passed down, year to year, and amendable by any Assay Commission, although in practice little change was made. Under the rules, the Director of the Mint called the assay commissioners to order, then introduced the federal judge who was an ''ex officio'' member, who presided over the meetings; if the judge was absent, the members elected a chairman. The chairman divided the members into the committees. If there had been a change of officers at a mint, commissioners examined coins from before and after. After the committees completed their work, the members re-assembled to report their findings and to vote on their report.
Every Assay Commission passed the coinage that it was called upon to examine.
If pieces varying from the standard were found, that was also noted; the 1885 Assay Commission reported the one substandard silver coin, which came from the Carson City Mint, but urged
the president to take no action, noting that the coin was underweight by an amount too small to be measured by the scales at
Carson City
Carson City, officially the Carson City Consolidated Municipality, is an independent city and the capital of the U.S. state of Nevada. As of the 2020 census, the population was 58,639, making it the 6th most populous city in the state. The m ...
.
Remains of coins used in the assay were melted by the Mint; those put aside for the Assay Commission that were not used were placed in circulation from Philadelphia, and were not marked or distinguished in any way. There were thousands of coins for the commission, of which only a few were assayed. Commissioners often purchased some of the remaining pieces as souvenirs, although
commemorative coin
A commemorative coin is a coin issued to commemorate some particular event or issue with a distinct design with reference to the occasion on which they were issued. Some coins of this category serve as collector's items only, while most commemora ...
s could not be purchased if Congress had given the exclusive right to sell them to a sponsoring organization—they were instead destroyed.
Commissioners
Appointments of members of the public to the Assay Commission by the president are known to have been made as early as 1841; the final ones were made in 1976. Many early commissioners were chosen for their scientific or intellectual attainments. Such qualifications were not required of later public appointees, who included such prominent figures as
Ellin Berlin, wife of songwriter
Irving Berlin
Irving Berlin (born Israel Isidore Beilin; May 11, 1888 – September 22, 1989) was a Russian-born American composer and songwriter. His music forms a large part of the Great American Songbook. Berlin received numerous honors including an Acade ...
. The first women to be appointed to the Assay Commission were Mrs. Kellogg Fairbanks of Chicago and Mrs. B.B. Munford of Richmond, Virginia, both in 1920.
The recordholder for service as a commissioner is
Herbert Gray Torrey, 36 times an assay commissioner between 1874 and 1910 (missing only 1879) by virtue of his office as assayer of the New York Assay Office. The recordholder as a presidential appointee is Dr.
James Lewis Howe, head of the Department of Chemistry at
Washington and Lee University
Washington and Lee University (Washington and Lee or W&L) is a Private college, private Liberal arts colleges in the United States, liberal arts college in Lexington, Virginia, United States. Established in 1749 as Augusta Academy, it is among ...
, 18 times an assay commissioner, serving in 1907 and then each year from 1910 to 1926. An employee of the
National Bureau of Standards
The National Institute of Standards and Technology (NIST) is an agency of the United States Department of Commerce whose mission is to promote American innovation and industrial competitiveness. NIST's activities are organized into physical sc ...
was included in the presidential appointments each year; he brought with him the weights used in the assay, which were checked by the agency in advance. Although no future president served as an assay commissioner,
Comptroller of the Currency
The Office of the Comptroller of the Currency (OCC) is an independent bureau within the United States Department of the Treasury that was established by the National Currency Act of 1863 and serves to corporate charter, charter, bank regulation ...
Charles G. Dawes was a commissioner in 1899 and 1900; he was
Vice President of the United States
The vice president of the United States (VPOTUS) is the second-highest ranking office in the Executive branch of the United States government, executive branch of the U.S. federal government, after the president of the United States, and ranks f ...
from 1925 to 1929.
Among those appointed was coin collector and Congressman
William A. Ashbrook, 14 times an assay commissioner between 1908 and 1934. Ashbrook's presence on the 1934 Assay Commission has led to speculation that he might have used his position as an assay commissioner (he left Congress in 1921) to secure one or more
1933 Saint-Gaudens double eagles, almost all of which were melted due to the end of gold coinage for circulation. Assay commissioners were traditionally allowed to purchase coins from the pyx that were not assayed, and numismatic historian Roger Burdette speculates that Ashbrook, generally well-treated by the Treasury Department due to his onetime congressional position, might have exchanged other gold pieces for the 1933 coins.

The three known specimens of the 1873-CC quarter, without arrows by the date, and the only known dime of that description, may have been salvaged from assay pieces, as the remainder of those coins had been ordered melted as underweight.
A similar mystery attends the 1894
Barber dime struck at San Francisco (
1894-S) of which the published mintage is 24, although it is not certain whether this total includes the one sent to Philadelphia to await the 1895 Assay Commission. The fact that one of the 1895 assay commissioners was Robert Barnett, chief clerk of the San Francisco Mint, has led numismatic writers Nancy Oliver and Richard Kelly to speculate that he may have been made an assay commissioner in order to retrieve the dime. The 1895 Assay Commission report confirms that the dime was there, as it was counted by the Counting Committee. The dime is not mentioned as having been either weighed or assayed; Oliver and Kelly, in a May 2011 article in ''
The Numismatist'', suggest that Barnett used that privilege of assay commissioners to obtain the rarity. He is not known, however, to have written or spoken of the matter before his murder in 1904.
In 1964, former assay commissioners formed the Old Time Assay Commissioners Society (OTACS). When President Carter stopped appointing public members to the commission in 1977, the OTACS fundraised in an unsuccessful attempt to induce the government to continue that tradition. The society met annually through 2012, usually at the site of the yearly convention of the
American Numismatic Association (ANA).
With the number of surviving OTACS members at less than three dozen, the society plans no further meetings; its 2012 session in conjunction with the ANA convention in Philadelphia included an event at the mint.
Medals

Assay Commission medals were struck from a variety of metals, including copper, silver, bronze, and pewter. The first Assay Commission medals were struck in 1860 at the direction of Mint Director
James Ross Snowden. The initial purpose in having medals struck was not principally to provide keepsakes to the assay commissioners, but to advertise the Mint's medal-striking capabilities. The nascent custom lapsed when Snowden left office in 1861.
Numismatists
R.W. Julian and Ernest E. Keusch, in their work on Assay Commission medals, theorize that the resumption of Assay Commission medal striking in 1867 was at the request of Mint Engraver
James B. Longacre to new Mint Director
William Millward. Medals to be given to assay commissioners were struck each year after that until public members ceased to be appointed to the Assay Commission in 1977.

Early assay medals featured on the obverse a bust of
Liberty
Liberty is the state of being free within society from oppressive restrictions imposed by authority on one's way of life, behavior, or political views. The concept of liberty can vary depending on perspective and context. In the Constitutional ...
or figure of
Columbia, and on the reverse a wreath surrounding the words "" and the year. The 1870 obverse, by Longacre's successor
William Barber, features
Moneta
In Roman mythology, Moneta (Latin Monēta) was a title given to two separate goddesses: It was the name of the goddess of memory (identified with the Greek mythology, Greek goddess Mnemosyne), and it was an epithet of Juno (mythology), Juno, ca ...
surrounded by implements of the assay, such as scales and the pyx. The distinctive designs for each year would sometimes be topical—the 1876 medal bears a design for the centennial of American Independence, and 1879's depicted the recently deceased Mint Director
Henry Linderman. Beginning in 1880, they most often featured the president or Treasury Secretary. The medals in 1901 and from 1903 to 1909 were rectangular, a style popular at the time. The 1920 reverse, by Engraver
George T. Morgan, had a design which symbolized the ending of
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
; in 1921, an extra medal was struck in gold, given by the assay commissioners to outgoing President
Woodrow Wilson
Thomas Woodrow Wilson (December 28, 1856February 3, 1924) was the 28th president of the United States, serving from 1913 to 1921. He was the only History of the Democratic Party (United States), Democrat to serve as president during the Prog ...
as a mark of respect.

The 1936 issuance was a
mule
The mule is a domestic equine hybrid between a donkey, and a horse. It is the offspring of a male donkey (a jack) and a female horse (a mare). The horse and the donkey are different species, with different numbers of chromosomes; of the two ...
of the Mint's medals for the president at the time,
Franklin Roosevelt
Franklin Delano Roosevelt (January 30, 1882April 12, 1945), also known as FDR, was the 32nd president of the United States, serving from 1933 until his death in 1945. He is the longest-serving U.S. president, and the only one to have served ...
, and the first president,
George Washington
George Washington (, 1799) was a Founding Fathers of the United States, Founding Father and the first president of the United States, serving from 1789 to 1797. As commander of the Continental Army, Washington led Patriot (American Revoluti ...
. Bearing the words, "" on the edge, the medal was prepared in this manner by order of Mint Director
Nellie Tayloe Ross after Mint officials realized that they had forgotten to prepare a special design for an assay medal. The 1950 medal illustrates a meeting of three 1792 officeholders (Secretary of the Treasury Hamilton,
Secretary of State Thomas Jefferson
Thomas Jefferson (, 1743July 4, 1826) was an American Founding Fathers of the United States, Founding Father and the third president of the United States from 1801 to 1809. He was the primary author of the United States Declaration of Indepe ...
and
Chief Justice John Jay
John Jay (, 1745 – May 17, 1829) was an American statesman, diplomat, signatory of the Treaty of Paris (1783), Treaty of Paris, and a Founding Father of the United States. He served from 1789 to 1795 as the first chief justice of the United ...
). Although they were officeholders designated by the Mint Act of 1792, no assay took place until 1797, by which time all three had left those offices. There was no specially designed medal in 1954; instead, the assay commissioners, who met in Philadelphia on
Lincoln's Birthday, February 12, 1954, chose to receive the Mint's standard presidential medal depicting
Abraham Lincoln
Abraham Lincoln (February 12, 1809 – April 15, 1865) was the 16th president of the United States, serving from 1861 until Assassination of Abraham Lincoln, his assassination in 1865. He led the United States through the American Civil War ...
, with the commissioner's name on the edge. The final medals, 1976 and 1977, were oval and of pewter. The 1977 medal, depicting
Martha Washington, was not needed for presentation, as no public assay commissioners were appointed. They were presented to various Mint and other Treasury officials, and when there was public objection, more were struck and were placed on sale for $20 at the mints and other Treasury outlets in 1978. Material was available for about 1,500 medals, and they were initially not available by mail.
They were still available in person, and by mail order, in 1980.

All Assay Commission medals are extremely rare. Except for the 1977 medal, none is believed to have been issued in a quantity of greater than 200, and in most years fewer than 50 were struck. Additional copies of several 19th-century issues are known to have been illicitly struck; the Mint ended such practices in the early 20th century. The obverse of the 1909 issue, depicting Treasury Secretary
George Cortelyou, was reused as Cortelyou's entry in the Mint's series of medals honoring Secretaries of the Treasury. The later pieces were struck with a blank reverse, but in the early 1960s, the reverse design from the Assay Commission issue was used with the Cortelyou obverse, and an unknown number sold to the public. The restrikes are said to be less distinctly struck than the originals.
References
Explanatory notes
Citations
Bibliography
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{{DEFAULTSORT:United States Assay Commission
1792 establishments in the United States
1980 disestablishments in the United States
Organizations established in 1792
United States Mint
Organizations disestablished in 1980
Product-testing organizations