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  2. Coinage metals - Wikipedia

    en.wikipedia.org/wiki/Coinage_metals

    The coinage metals comprise those metallic chemical elements and alloys which have been used to mint coins. Historically, most coinage metals are from the three nonradioactive members of group 11 of the periodic table: copper, silver and gold. Copper is usually augmented with tin or other metals to form bronze.

  3. Group 11 element - Wikipedia

    en.wikipedia.org/wiki/Group_11_element

    Silver coins: Silver coins are typically produced as either 90% silver – in the case of pre-1965 US minted coins (which were circulated in many countries), or sterling silver (92.5%) coins for pre-1920 British Commonwealth and other silver coinage, with copper making up the remaining weight in each case. Old European coins were commonly ...

  4. List of mints - Wikipedia

    en.wikipedia.org/wiki/List_of_mints

    Today the United States Mint is largest mint manufacturer in the world, operating across six sites and producing as many as 28 billion coins in a single year. [2] Its largest site is the Philadelphia Mint which covers 650,000 square feet [3] (6 hectares) and can produce 32 million coins per day. [4]

  5. Category:Coinage metals and alloys - Wikipedia

    en.wikipedia.org/wiki/Category:Coinage_metals...

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  6. Coining (mint) - Wikipedia

    en.wikipedia.org/wiki/Coining_(mint)

    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.

  7. Silver coin - Wikipedia

    en.wikipedia.org/wiki/Silver_coin

    Silver coins are one of the oldest mass-produced form of coinage. Silver has been used as a coinage metal since the times of the Greeks; their silver drachmas were popular trade coins. The ancient Persians used silver coins between 612–330 BC. Before 1797, British pennies were made of silver.

  8. Portal:Numismatics - Wikipedia

    en.wikipedia.org/wiki/Portal:Numismatics

    The gold dollar or gold one-dollar piece is a gold coin that was struck as a regular issue by the United States Bureau of the Mint from 1849 to 1889. The coin had three types over its lifetime, all designed by Mint Chief Engraver James B. Longacre.

  9. Piloncitos - Wikipedia

    en.wikipedia.org/wiki/Piloncitos

    Since these factory sites have been dated, archaeologists now use the beads to date sites, though whether beads rose to the level of metals, salt, cloth, and cowries as "standard" trade goods is uncertain. [3] The first indigenous metallic coinage in the region, ca. 750–850 AD, comes from the Javanese kingdom of Sailendra (Chinese: Ho-ling ...