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Close Collar Minting
Close collar minting is a method of coin manufacture that is used almost exclusively today. With close collar minting, the planchet is centred within a solid metal collar during the minting process. This restraining collar prevented the expansion of the planchet sideways and outwards and thus made it possible to mint completely round coins for the first time. These could also have a slightly raised edge ( edge bar) and an edge inscription without additional milling. The edge minting made possible with the new technology is not only difficult to forge; it also increases the circulation security of the coins, since coin clipping is very easily noticed. A pearl circle often adjoins the edge bar on the inside. Close collar minting is an invention of French medalist and engraver Jean-Pierre Droz (1746–1823). Its prototype of a functional minting machine had a six-part minting ring. Close collars were used for the first time in the new Soho Mint. In Germany, Prussia systematically p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mint (facility)
A mint is an industrial facility which manufactures coins that can be used as currency. The history of mints correlates closely with the history of coins. In the beginning, hammered coinage or cast coinage were the chief means of coin minting, with resulting production runs numbering as little as the hundreds or thousands. In modern mints, coin dies are manufactured in large numbers and planchets are made into milled coins by the billions. With the mass production of currency, the production cost is weighed when minting coins. For example, it costs the United States Mint much less than 25 cents to make a quarter (a 25 cent coin), and the difference in production cost and face value (called seigniorage) helps fund the minting body. Conversely, a U.S. penny ($0.01) cost $0.015 to make in 2016. History The first minted coins The earliest metallic money did not consist of coins, but of unminted metal in the form of rings and other ornaments or of weapons, which were us ... [...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 Holy Roman Empire was a political entity in Western, Central, and Southern Europe that developed during the Early Middle Ages and continued until its dissolution in 1806 during the Napoleonic Wars. From the accession of Otto I in 962 .... 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edge Bar
Coin edges may be plain (smooth) or patterned, or a combination of both. They can also include lettering. Reeded edges are often referred to as "ridged" or "grooved" (US usage), or "milled" (UK usage).Concise Oxford Dictionary (2006): mill, produce regular ribbed markings on the edge of (a coin) Some coins, such as United States quarters and dimes, have reeded edges. Reeding of edges was introduced to prevent coin clipping and counterfeiting. The main techniques of coin edging are edge mills of various types, which put a pattern on a smooth edge after a coin and coin mills with edge ring, which pattern the edge at the time when the coin is being milled. Coin edge patterns Examples of patterns used on coin edges include: File:Гладкий гурт.png , File:С вырезом гурт.png , File:Рифлёный гурт.png , File:Прерывисто рубчатый гурт.png , File:С наклонными засечками гурт.png , File:Текстово� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milling (coin)
Reeding is a technique wherein a number of narrow ridges called "reeds" are carved or milled into a surface. __NOTOC__ Numismatics In numismatics, reeded edges are often referred to as "ridged" or "grooved" (American usage), or "milled" (British usage). Some coins, such as United States quarters and dimes, 1 euro, Australian 5, 10, 20 cents, 1 and 2 dollars, as well many other current coins, have reeded edges. One reason for having reeded edges was to prevent counterfeiting. Some gold and silver coins were reeded to discourage clipping, i.e. scraping off the precious metals from the edge of the coin, to maintain its stated value in precious metal. This practice was made more difficult through the implementation of reeding by Isaac Newton in 1698, during his time as warden of the Royal Mint. Another benefit of certain coins having reeded edges is that it helps the visually impaired identify different coin denominations by sense of touch alone. This dual purpose of reedi ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pearl Circle
A pearl circle (also pearl rim or pearl ring; French ''grènetis'', German ''Perlkreis'', ''Perlrand'', ''Perlreif'') is a circular arrangement of fine, raised points or "pearls" on the edge of coins; it also sometimes appears in round or oval frames. It can be considered a relative or subsidiary form of the bead and reel motif. Shape If there is a pearl circle or a string of pearls on coins, it usually encloses the entire coin design. The pearl circle can be on one or both sides of a coin.''Perlkreis'' at reppa.de. Retrieved 5 July 2022. In addition to a simple beaded wreath, there are also double or multiple beaded circles. There are also variants that do not have circular beads or that show an alternating pattern of beads and other simple geometric figures. Function Pearl circles (later also small edge bars) were not ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halfpenny 1790 George III Pattern By J
Halfpenny, half penny, or ha'penny may refer to: Coins * Halfpenny (British decimal coin) * Halfpenny (British pre-decimal coin) * Halfpenny (Irish pre-decimal coin) * Halfpenny (Irish decimal coin) * Halfpenny (Australian) (pre-decimal) * New Zealand half penny coin (pre-decimal) * The St. Patrick halfpenny, 17th century * Scottish halfpenny coin, pre-Union * Half cent (United States coin) Other uses * Halfpenny (surname) * ''Ha'penny'' (novel), by Jo Walton * Ha'penny Bridge, over the Liffey in Dublin * Halfpenny Bridge, over the Thames in Lechlade, Gloucestershire, England * Halfpenny Gate, village in County Down, Northern Ireland * Halfpenny Rose Red, a postage stamp from the reign of Queen Victoria * Halfpenny, Cumbria, hamlet in Southern Lakeland, Cumbria, England See also * Bord halfpenny {{Short pages monitor [Baidu] |
Medalist
A medalist (or medallist) is an artist who designs medals, plaquettes, badges, metal medallions, coins and similar small works in relief in metal. Historically, medalists were typically also involved in producing their designs, and were usually either sculptors or goldsmiths by background. In modern times, medalists are mostly primarily sculptors of larger works, but in the past the number of medals and coins produced were sufficient to support specialists who spent most of their career producing them. From the 19th century, the education of a medalist often began with time as an engraver, or a formal education in an academy, particularly modeling and portraiture. On coins, a mark or symbol signifying the medalist as the original designer was often included in a hidden location and is not to be mistaken for the symbol of the mint master. Artistic medals and plaquettes are often signed prominently by the artist. Background Artistic medals have been produced since the late Renaiss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Pierre Droz
Jean-Pierre Droz (1746 - 1823) was a coin and medal engraver born in Switzerland and trained in Paris. Droz was most known for engraving the Napoléon coin at the Paris Mint The Monnaie de Paris (Paris Mint) is a government-owned institution responsible for producing France's coins. Founded in AD 864 with the Edict of Pistres, it is the world's oldest continuously running minting institution. In 1973, the mint reloc .... He was employed by the prominent English manufacturer and business man, Matthew Boulton (1728 - 1809) to improve Boulton's coin and medal quality. However, he worked there for just two years. In 1789, Droz devised a collar used to engrave the sides of coins and ensure a circular shape, and though it was unsuitable for large numbers of coins, it remained in use at the Soho Mint. He was a member of the Royal Birmingham Society of Artists. References External links * {{DEFAULTSORT:Droz, Jean Pierre 1746 births 1823 deaths Members and Associ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soho Mint
Soho Mint was created by Matthew Boulton in 1788 in his Soho Manufactory () in Handsworth, West Midlands, England. A mint was erected at the manufactory containing eight machines, to his own patent design, driven by steam engine, each capable of striking 70 to 85 coins per minute. In addition to copper domestic coins, silver coins were made for some of the colonies, and various trade tokens and medals were struck.''Old and New Birmingham: A History of the Town and its People'', Robert Kirkup Dent, Published by Houghton and Hammond, Scotland Passage, Birmingham, 1880 Among the medals produced were the Seringapatam medal, made for the East India Company in 1801–2 to reward participants of the Battle of Seringapatam, and a medal for the Battle of Trafalgar, which Matthew Boulton produced at his own expense and gave to all those present at the 1805 battle. After the demise of the Soho Mint some of the machinery was bought at auction, in 1850, by the new Birmingham Mint of Ral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Customs Union
The (), or German Customs Union, was a coalition of German states formed to manage tariffs and economic policies within their territories. Organized by the 1833 treaties, it formally started on 1 January 1834. However, its foundations had been in development from 1818 with the creation of a variety of custom unions among the German states. By 1866, the included most of the German states. The Zollverein was not part of the German Confederation (1815-1866). The foundation of the was the first instance in history in which independent states consummated a full economic union without the simultaneous creation of a political federation or union. Prussia was the primary driver behind the creation of the customs union. Austria was excluded from the because of its highly protectionist trade policy, the unwillingness to split its customs territory into the separate Austrian, Hungarian and Galician-Lodomerian ones, as well as due to opposition of Prince von Metternich to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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