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1792 Half Disme
The 1792 half disme (pronounced "deem") is an American silver coin with a face value of five cents which was minted in 1792. Although it is subject to debate as to whether this was intended to be circulating coinage or instead an experimental issue, President George Washington referred to it as "a small beginning" and many of the coins eventually were released into circulation. It is widely (although not universally) considered the first United States coinage struck under authority of the Coinage Act of 1792. Origins When speaking to the House of Representatives in November 1792, President Washington mentioned the "want of small coins in circulation" and stated that he had begun work on establishing a U.S. Mint and that some half dismes had been produced already. At this point, most of the personnel had been hired, but the Mint's buildings and machinery were not yet ready. As a result, the half dismes, which had been struck in or around July 1792, were produced using the private ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1792 Half Disme Obv
Year 179 ( CLXXIX) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Aurelius and Veru (or, less frequently, year 932 '' Ab urbe condita''). The denomination 179 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman empire * The Roman fort Castra Regina ("fortress by the Regen river") is built at Regensburg, on the right bank of the Danube in Germany. * Roman legionaries of Legio II ''Adiutrix'' engrave on the rock of the Trenčín Castle (Slovakia) the name of the town ''Laugaritio'', marking the northernmost point of Roman presence in that part of Europe. * Marcus Aurelius drives the Marcomanni over the Danube and reinforces the border. To repopulate and rebuild a devastated Pannonia, Rome allows the first German colonists to enter territory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheldon Coin Grading Scale
The Sheldon Coin Grading Scale is a 70-point coin grading scale used in the numismatic assessment of a coin's quality. The American Numismatic Association based its ''Official ANA Grading Standards'' in large part on the Sheldon scale. The scale was created by William Herbert Sheldon. Original Sheldon Scale (1949) In 1949, the original scale was first presented in "Dr. William H. Sheldon's Early American Cents" titled "A Quantitative Scale for condition" as a way to grade Large cents. The scale is known today as the Sheldon scale. Adapted scale (1970s–present) By 1953 the original Sheldon scale had become outdated. It was not until the 1970s, however, that the ANA chose to adapt the scale for use on all US coins. The scale used today is a modification of the original Sheldon scale, with added adjustments, additions, deletions, and modifications to it. ''Note'': Some early American coin varieties are almost always found to be weakly struck in places. This does not bring t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nickel (United States Coin)
A nickel is a five-cent coin struck by the United States Mint. Composed of cupronickel (75% copper and 25% nickel), the piece has been issued since 1866. Its diameter is 0.835 inches (21.21 mm) and its thickness is 0.077 inches (1.95 mm). The silver half dime, equal to five cents, was issued from 1792 to 1873 before today's cupronickel version. The American Civil War caused economic hardship, driving gold and silver from circulation; in response, in place of low-value coins, the government at first issued paper currency. In 1865, Congress abolished the five-cent fractional currency note after Spencer M. Clark, head of the Currency Bureau (today the Bureau of Engraving and Printing), placed his own portrait on the denomination. After the successful introduction of two-cent and three-cent pieces without precious metal, Congress also authorized a five-cent piece consisting of base metal; the Mint began striking this version in 1866. The initial design o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Half Dime
The half dime, or half disme, was a silver coin, valued at five cents, formerly minted in the United States. Some numismatists consider the denomination to be the first business strike coin minted by the United States Mint under the Coinage Act of 1792, with production beginning on or about July 1792. However, others consider the 1792 half disme to be nothing more than a pattern coin, or "test piece", and this matter continues to be subject to debate. These coins were much smaller than dimes in diameter and thickness, appearing to be "half dimes". In the 1860s, powerful interests promoting the use of nickel as a metal for use in coinage successfully lobbied for the creation of new three and five cent coins, which would be made of a copper-nickel alloy; production of such coins began in 1865 and 1866, respectively. The introduction of the copper-nickel three and five-cent pieces made the silver coins of the same denomination redundant, and both silver denominations were di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form ( native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Alloys
This is a list of named alloys grouped alphabetically by base metal. Within these headings, the alloys are also grouped alphabetically. Some of the main alloying elements are optionally listed after the alloy names. Alloys by base metal Aluminium * AA-8000: used for electrical building wire in the U.S. per the National Electrical Code, replacing AA-1350. * Al–Li (2.45% lithium): aerospace applications, including the Space Shuttle * Alnico (nickel, cobalt): used for permanent magnets * Aluminium–Scandium (scandium) * Birmabright (magnesium, manganese): used in car bodies, mainly used by Land Rover cars. * Duralumin (copper) * Hiduminium or R.R. alloys (2% copper, iron, nickel): used in aircraft pistons * Hydronalium (up to 12% magnesium, 1% manganese): used in shipbuilding, resists seawater corrosion * Italma (3.5% magnesium, 0.3% manganese): formerly used to make coinage of the Italian lira * Magnalium (5-50% magnesium): used in airplane bodies, ladders, pyrotechnics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Numismatic Guaranty Corporation
Numismatic Guaranty Company (NGC) is an international third-party coin grading and certification service based in Sarasota, Florida. It has certified more than 50 million coins. NGC certification consists of authentication, grading, attribution, and encapsulation in clear plastic holders. NGC is a subsidiary of Certified Collectibles Group (CCG), which owns six collectible certification services and is in turn owned by Blackstone, a multibillion dollar New York City hedge fund. History NGC was founded in 1987 in Parsippany, N.J. as one of the first independent third-party coin grading companies. In 1995, NGC was named the official grading service of the ANA, though this is purely for marketing purposes as the ANA does not encapsulate coins in its collection, and those that are encapsulated are a mix of donated coins by different services including rivals such as PCGS. NGC commenced operations at its new location in Sarasota, Florida in 2002. That same year, NGC was named th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Professional Coin Grading Service
Professional Coin Grading Service (PCGS) is an American third-party coin grading, authentication, attribution, and encapsulation service founded in 1985. The intent of its seven founding dealers, including the firm's former president David Hall, was to standardize grading.Laibstain, Harry. ''Investing, collecting & trading in certified commemoratives: an in-depth analysis of gold & silver issues 1892-1954''. DLRC Press, 1995, p. 1-134. The firm has divisions in Europe and Asia, and is owned by parent company Collectors Universe. PCGS has graded over 42.5 million coins, medals, and tokens valued at over $36 billion. History PCGS was founded in 1985 by seven dealers, including the firm's former president, David Hall. The founders' intent was to establish definitive grading standards, backed by a guarantee of grading accuracy. PCGS began operations on February 3, 1986. The firm has since started grading foreign coins and established divisions in Europe and Asia, and was purchased ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pawn Stars
''Pawn Stars'' is an American reality television series shown on History and produced by Leftfield Pictures. The series is filmed in Las Vegas, Nevada, where it chronicles the daily activities at the World Famous Gold & Silver Pawn Shop, a 24-hour family business opened in 1989 and originally operated by patriarch Richard "Old Man" Harrison, his son Rick Harrison, Rick's son Corey "Big Hoss" Harrison, and Corey's childhood friend, Austin "Chumlee" Russell. The series, which became the network's highest rated show,Childers, Linda (July 7, 2011)"Rick Harrison of 'Pawn Stars' spills success secrets" CNN Money. and the No. 2 reality show behind ''Jersey Shore'', debuted on July 26, 2009. The series depicts the staff's interactions with customers, who bring in a variety of artifacts to sell or pawn, shown haggling over the price, and discussing its historical background, with narration provided by either the Harrisons or Chumlee. The series also follows the interpersonal con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coin Grading
Coin grading is the process of determining the grade or condition of a coin, one of the key factors in determining its value. A coin's grade is generally determined by six criteria: strike, preservation, luster, color, attractiveness, and occasionally the country/state in which they’re minted. Several grading systems have been developed. Certification services professionally grade coins for tiered fees. Overview A "grade" measures a coin's appearance. There are generally five main components which determine a coin's grade: strike, surface preservation, luster, coloration and eye appeal. Grading is subjective and even experts can disagree about the grade of a given coin. History U.S. coin grading has evolved over the years to a system of finer and finer grade distinctions. Originally, there were only two grades, new and used. This changed to the letter grading system beginning with the lowest grade – ''Basal State'' (also ''Poor'' (PO)), then continuing ''Fair'' (Fr), ''Abou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martha Washington
Martha Dandridge Custis Washington (June 21, 1731 — May 22, 1802) was the wife of George Washington, the first president of the United States. Although the title was not coined until after her death, Martha Washington served as the inaugural first lady of the United States. During her lifetime, she was often referred to as "Lady Washington". Martha Dandridge first married Daniel Parke Custis. They had four children, two of whom survived to young adulthood. Daniel's death made Martha a widow at age 26. She brought her vast wealth to her marriage to Washington, which enabled him to buy land to add to his personal estate. She also brought with her 84 dower slaves from Daniel Custis' estate for use during her lifetime. They and their descendants reverted to Custis' estate at her death and were inherited by his heirs. The Washingtons did not have children together, but they did rear her two surviving children, John and Martha. They also helped both of their extended families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver
Silver is a chemical element with the symbol Ag (from the Latin ', derived from the Proto-Indo-European ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of the seven metals of antiquity, silver has had an enduring role in most human cultures. Oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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