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Coins may be composed of multiple metals using alloys, coatings, or bimetallic forms. Coin alloys include bronze, electrum and cupronickel.Plating, cladding or other coating methods are used to form an outer layer of metal and are typically used to replace a more expensive metal while retaining the former appearance.
Billon (/ ˈ b ɪ l ən /) is an alloy of a precious metal (most commonly silver, but also gold) with a majority base metal content (such as copper). It is used chiefly for making coins, medals, and token coins. The word comes from the French bille, which means 'log'. [1]
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.
If the mint mark is missing, it means the coin is rare and can fetch a lot of money on the collector’s market. Planchet errors: Planchets are the round, blank pieces of metal used to make coins ...
If the mint mark is missing, you could have a very valuable coin on your hands. Planchet errors: Planchets are the round, blank pieces of metal used to make coins. Planchet errors mean they might ...
Bullion coins are government-minted, legal tender coins made of precious metals, such as gold, palladium, platinum, rhodium, and silver. They are kept as a store of value or an investment rather than used in day-to-day commerce.
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