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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.

3. History of coins - Wikipedia

   en.wikipedia.org/wiki/History_of_coins

   Double-die style struck coin from Ancient India, c 304-232 BCE featuring an elephant on one face and a lion on the other. Since that time, coins have been the most universal embodiment of money. These first coins were made of electrum, a naturally occurring pale yellow mixture of gold and silver that was further alloyed with silver and copper.

4. Metals of antiquity - Wikipedia

   en.wikipedia.org/wiki/Metals_of_antiquity

   It was recognised as an element by Guyton de Morveau, Lavoisier, Berthollet, and Fourcroy in 1787. [6] The earliest gold artifacts were discovered at the site of Wadi Qana in the Levant. [13] Silver is estimated to have been discovered in Asia Minor shortly after copper and gold. [14] There is evidence that iron was known from before 5000 BC. [15]

5. Numismatic history of the United States - Wikipedia

   en.wikipedia.org/wiki/Numismatic_history_of_the...

   The Coinage Act of 1792 established the United States Mint and regulated the coinage of the United States. [3] The act created coins in the denominations of Half Cent (1/200 of a dollar), Cent (1/100 of a dollar, or a cent), Half Dime (also known as a half disme) (five cents), Dime (also known as a disme) (10 cents), Quarter (25 cents), Half Dollar (50 cents), Dollar, Quarter Eagle ($2.50 ...

6. 9 Rare American Coins That Are Worth a Lot of Money - AOL

   www.aol.com/finance/9-rare-american-coins-worth...

   The Standing Liberty quarter remains “among the most collectible old coins ever made” by the U.S. Mint, according to Gainesville Coins. The coin’s design made its debut in 1916 but was ...

7. 4 Decades of Valuable Coins: See Which Are Worth the Most ...

   www.aol.com/finance/4-decades-valuable-coins-see...

   Some of the most expensive coins ever sold at auction were minted in the U.S., many within the past century. You might still find them in circulation, or even... 4 Decades of Valuable Coins: See ...