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  2. Redfield Hoard - Wikipedia

    en.wikipedia.org/wiki/Redfield_Hoard

    Redfield did not trust banks and paper money so he continued to collect silver dollars. He was dubbed the "Silver dollar king" after the discovery of the silver dollar hoard in 1974. From the mid 1960s to 1974 he hoarded more than 400,000 silver dollars.

  3. Cupellation - Wikipedia

    en.wikipedia.org/wiki/Cupellation

    16th century cupellation furnaces (per Agricola). Cupellation is a refining process in metallurgy in which ores or alloyed metals are treated under very high temperatures and subjected to controlled operations to separate noble metals, like gold and silver, from base metals, like lead, copper, zinc, arsenic, antimony, or bismuth, present in the ore.

  4. List of most expensive coins - Wikipedia

    en.wikipedia.org/wiki/List_of_most_expensive_coins

    Silver Center J-1 Pattern United States Boyd, Newman Heritage Auctions: May 2014 $1,410,000 1776 Continental Silver N-3D Prefed United States Earle, Newcomer, Green, Newman Heritage Auctions: May 2014 $1,410,000 1792 Half Disme J-7 Pattern United States Floyd Starr Heritage Auctions: January 2013 $1,380,000 1587-1632 Sigismund III

  5. Coin roll hunting - Wikipedia

    en.wikipedia.org/wiki/Coin_roll_hunting

    In Canada, coin roll hunters obtain rolls of nickels, and sometimes dimes and quarters. Dimes and quarters didn't have high mint numbers until silver was discontinued in the middle of 1968. After 1968, coins were minted in very high numbers, making silver coins uncommon, plus the introduction of silver-rejecting bank machines took many silver coin

  6. Silver - Wikipedia

    en.wikipedia.org/wiki/Silver

    In such processes, silver follows the non-ferrous metal in question through its concentration and smelting, and is later purified out. For example, in copper production, purified copper is electrolytically deposited on the cathode, while the less reactive precious metals such as silver and gold collect under the anode as the so-called "anode ...

  7. Half dollar (United States coin) - Wikipedia

    en.wikipedia.org/wiki/Half_dollar_(United_States...

    The half dollar, sometimes referred to as the half for short or 50-cent piece, is a United States coin worth 50 cents, or one half of a dollar.In both size and weight, it is the largest circulating coin currently minted in the United States, [1] being 1.205 inches (30.61 millimeters) in diameter and 0.085 in (2.16 mm) in thickness, and is twice the weight of the quarter.

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