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For example, in India some coins have been made from a stainless steel that contains 82% iron, 18% chromium, and many other countries that have minted coins that contain metals now worth nearly the coin face-value, are experimenting with various steel alloys. Italy had earlier experimented with acmonital, a stainless steel alloy, for its coins ...
Group 11 is also known as the coinage metals, due to their usage in minting coins [2] —while the rise in metal prices mean that silver and gold are no longer used for circulating currency, remaining in use for bullion, copper remains a common metal in coins to date, either in the form of copper clad coinage or as part of the cupronickel alloy.
They are made of iron and have two forms with either small or large characters. The small character iron coins are associated with casting in Shaanxi and Shanxi in the Qing Li period (from 1044). The large character iron coins are associated with Sichuan mints. The histories say that the Huang Song coin was cast in Baoyuan 2 – 1039.
Sparta deliberately used iron currency to make amassing wealth unwieldy, and remained on an iron currency standard all through Greece's golden age. [2] Julius Caesar's Gallic Wars, mentions iron currency in Britain. [3] "For money they use bronze or gold coins, or iron bars of fixed weights." — Julius Caesar, 54 BC [1]
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.
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 c. 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 ...
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A catty of iron could be cast into 133 1 wén iron cash coins, or 66 5 wén iron cash coins (which would have a total nominal value of 330 wén), or 53 10 wén iron cash coins (which would have a total nominal value of 530 wén). [15] Iron cash coins were easily produced with iron scrap, which on the market cost 15 wén per catty in 1854. [15]