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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. Category:Copper coins - Wikipedia

    en.wikipedia.org/wiki/Category:Copper_coins

    Pages in category "Copper coins". The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes .

  4. United States Mint coin sizes - Wikipedia

    en.wikipedia.org/wiki/United_States_Mint_coin_sizes

    In particular, many silver coins changed in the 1870s. [4] The figures cited in the tables are representative of the series, and are generally the latest, or most common, figures for a given coin type. The largest coin ever minted by the US Mint was the 2019 Apollo 50th anniversary 5ounce silver dollar, weighing 155.517 grams, and 76.2 mm in ...

  5. List of copper alloys - Wikipedia

    en.wikipedia.org/wiki/List_of_copper_alloys

    Latten is a further term, mostly used for coins with a very high copper content. Today the term copper alloy tends to be substituted for all of these, especially by museums. [1] Copper deposits are abundant in most parts of the world (globally 70 parts per million), and it has therefore always been a relatively cheap metal.

  6. List of Chinese cash coins by inscription - Wikipedia

    en.wikipedia.org/wiki/List_of_Chinese_cash_coins...

    The lead coins circulated together with copper coins. 916: Wang Shenzhi: Kaiyuan Tongbao: 開元通寶: kāiyuán tōng bǎo: These cash coins have a large dot above on the reverse side. They are made of iron and the same coin cast in bronze is extremely rare. 922: Wang Shenzhi: Kaiyuan Tongbao: 開元通寶: kāiyuán tōng bǎo

  7. Roman currency - Wikipedia

    en.wikipedia.org/wiki/Roman_currency

    Roman currency for most of Roman history consisted of gold, silver, bronze, orichalcum and copper coinage. [1] From its introduction during the Republic, in the third century BC, through Imperial times, Roman currency saw many changes in form, denomination, and composition. A feature was the inflationary debasement and replacement of coins over ...

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