|
Hammered Coinage
Hammered coinage is the most common form of coins produced since the invention of coins in the first millennium BC until the early modern period of c. the 15th–17th centuries, contrasting to the cast coinage and the later developed milled coinage. History Hammered coins were produced by placing a blank piece of metal (a ''planchet'' or ''flan'') of the correct weight between two dies, and then striking the upper die with a hammer to produce the required image on both sides. The planchet was usually cast from a mold. The bottom die (sometimes called the ''anvil die'') was usually counter sunk in a log or other sturdy surface and was called a ''pile''. One of the minters held the die for the other side (called the ''trussel''), in his hand while it was struck either by himself or an assistant. Experimental archeology suggests that a lower die could be expected to last for up to 10,000 strikes depending on the level of wear deemed acceptable. Upper dies seem to have a far great ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coin
A coin is a small, flat (usually depending on the country or value), round piece of metal or plastic used primarily as a medium of exchange or legal tender. They are standardized in weight, and produced in large quantities at a mint in order to facilitate trade. They are most often issued by a government. Coins often have images, numerals, or text on them. ''Obverse'' and its opposite, ''reverse'', refer to the two flat faces of coins and medals. In this usage, ''obverse'' means the front face of the object and ''reverse'' means the back face. The obverse of a coin is commonly called ''heads'', because it often depicts the head of a prominent person, and the reverse ''tails''. Coins are usually made of metal or an alloy, or sometimes of man-made materials. They are usually disc shaped. Coins, made of valuable metal, are stored in large quantities as bullion coins. Other coins are used as money in everyday transactions, circulating alongside banknotes. Usually the highest va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cast Coinage
Cast coinage refers to coins made by pouring melted metal into a mold, i.e. casting. It has been used for regular coins, particularly in East Asia, but also other areas on a smaller scale (e.g. the ancient Mediterranean world). The method differs from the current mode of coin production, which is done by striking coin blanks that have been cut out of metal sheets. The method has also been used by forgers. Traditional Far Eastern cast coins—so-called 'cash coins'—are the most famous example of cast coinage, and were issued from the 4th century BC until circa 1912, predominantly in bronze, brass or iron. Traditional Far Eastern coins were generally cast base metal coins, although silver and gold bars were also manufactured, e.g. Chinese sycee, Japanese obans and kobans, and Vietnamese lang and tien. Cast potins circulated in Kent from around 100 BC to around 50 BC. At a point during the first century of the Christian era, cast bronze coins were produced in Dorset with archaeolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milled Coinage
In numismatics, the term milled coinage (also known as machine-struck coinage) is used to describe coins which are produced by some form of machine, rather than by manually hammering coin blanks between two dies (hammered coinage) or casting coins from dies. Introduction Until 1550, coinage techniques used in European mints had not progressed from the hammered coinage of Ancient Greece. This was problematic because an increase in the supply of bullion from central Europe and America was overworking mints. That led to low quality coins which were easily forged or clipped, i.e. precious metal was shaved from the edges of the coins. In accordance with Gresham's law, the clipped and forged coins drove good coins out of circulation, depreciating the currency. Leonardo da Vinci's notebooks showed there was a better way and Donato Bramante, the architect who made the initial plans for St. Peter's Basilica, developed a screw press to make the lead bullae attached to Papal document ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planchet
A planchet is a round metal disk that is ready to be struck as a coin. An older word for planchet is flan. They are also referred to as blanks. History The preparation of the flan or planchet has varied over the years. In ancient times, the flan was heated before striking because the metal that the coin dies were made of was not as hard as dies today, and the dies would have worn faster and broken sooner had the flan not been heated to a high temperature to soften it. An unusual method was used to mint the one-sided, bowl-shaped ''pfennigs'' of the Holy Roman Empire. The planchet used for these so-called ''Schüsselpfennigs'' was larger than the coin die itself. The coins were made by striking with only one upper die on the larger planchet. As a result, the perimeter of the planchet was pressed upwards in the shape of a bowl or plate. Until the 18th century they were minted mainly in the Harz Mountains. The curved shape of the pfennig was very useful for handling small change ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coin Die
Minting, coining or coinage is the process of manufacturing coins using a kind of stamping, the process used in both hammered coinage and milled coinage. This "stamping" process is different from the method used in cast coinage. A coin die is one of the two metallic pieces that are used to strike a coin, one per each side of the coin. A die contains an inverse version of the image to be ''struck'' on the coin. ''Striking'' a coin refers to pressing an image into the blank metal disc, or planchet, and is a term descended from the days when the dies were struck with hammers to deform the metal into the image of the dies. Modern dies made out of hardened steel are capable of producing many hundreds of thousands of coins before they are retired and defaced. Ancient coin dies Prior to the modern era, coin dies were manufactured individually by hand by artisans known as engravers. In demanding times, such as the crisis of the Roman Empire in the 3rd century, dies were still use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Experimental Archeology
Experimental archaeology (also called experiment archaeology) is a field of study which attempts to generate and test archaeological hypotheses, usually by replicating or approximating the feasibility of ancient cultures performing various tasks or feats. It employs a number of methods, techniques, analyses, and approaches, based upon archaeological source material such as ancient structures or artifacts. It is distinct from uses of primitive technology without any concern for archaeological or historical study. Living history and historical reenactment, which are generally undertaken as hobbies, are non-archaeological counterparts of this academic discipline. One of the main forms of experimental archaeology is the creation of copies of historical structures using only historically accurate technologies. This is sometimes known as reconstruction archaeology or reconstructional archaeology; however, reconstruction implies an exact replica of the past, when it is in fact just on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphictyonic League
In Archaic Greece, an amphictyony ( grc-gre, ἀμφικτυονία, a "league of neighbors"), or amphictyonic league, was an ancient religious association of tribes formed before the rise of the Greek ''poleis''. The six Dorian cities of coastal southwest Anatolia and the twelve Ionian cities to the north that formed the Ionian League after a Meliac war in the mid-7th century BC, were already of considerable antiquity when the first written records emerge. An amphictyony consisting of polities under the aegis of Apollo's shrine at Delos was apparently well-established in the seventh century, as the Homeric Hymn to Delian Apollo of that approximate date lists them, those cities and islands that trembled and refused to offer themselves for the birthplace of Apollo when pregnant Leto went to each in turn; the Homeric hymn presents an origin myth for the cult of Apollo on Delos. The joint Ionian festival celebrated there was the Delia. The Delian Amphictyony arose in the 4t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coin Clipping
Coin debasement is the act of decreasing the amount of precious metal in a coin, while continuing to circulate it at face value. This was frequently done by governments in order to inflate the amount of currency in circulation; typically, some of the precious metal was replaced by a cheaper metal when the coin was minted. But when done by an individual, precious metal was physically removed from the coin, which could then be passed on at the original face value, leaving the debaser with a profit. Coin debasement was effected by several methods, including clipping (shaving metal from the coin's circumference) and sweating (shaking the coins in a bag and collecting the dust worn off). Until the mid-20th century, coins were often made of silver or (rarely) gold, which were quite soft and prone to wear. This meant coins naturally got lighter (and thus less valuable) as they aged, so coins that had lost a small amount of bullion would go unnoticed. Modern coins used as currency are m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milled Coinage
In numismatics, the term milled coinage (also known as machine-struck coinage) is used to describe coins which are produced by some form of machine, rather than by manually hammering coin blanks between two dies (hammered coinage) or casting coins from dies. Introduction Until 1550, coinage techniques used in European mints had not progressed from the hammered coinage of Ancient Greece. This was problematic because an increase in the supply of bullion from central Europe and America was overworking mints. That led to low quality coins which were easily forged or clipped, i.e. precious metal was shaved from the edges of the coins. In accordance with Gresham's law, the clipped and forged coins drove good coins out of circulation, depreciating the currency. Leonardo da Vinci's notebooks showed there was a better way and Donato Bramante, the architect who made the initial plans for St. Peter's Basilica, developed a screw press to make the lead bullae attached to Papal document ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venice
Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 small islands that are separated by canals and linked by over 400 bridges. The islands are in the shallow Venetian Lagoon, an enclosed bay lying between the mouths of the Po River, Po and the Piave River, Piave rivers (more exactly between the Brenta (river), Brenta and the Sile (river), Sile). In 2020, around 258,685 people resided in greater Venice or the ''Comune di Venezia'', of whom around 55,000 live in the historical island city of Venice (''centro storico'') and the rest on the mainland (''terraferma''). Together with the cities of Padua, Italy, Padua and Treviso, Italy, Treviso, Venice is included in the Padua-Treviso-Venice Metropolitan Area (PATREVE), which is considered a statistical metropolitan area, with a total population of 2.6 million. The name is derived from the ancient Adri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Coin Clipping")
.jpg "Click for more on -> Venice")