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  2. Platinum coin - Wikipedia

    en.wikipedia.org/wiki/Platinum_coin

    Platinum coins are a popular investment, and each year the number of such coins sold by Sberbank of Russia increases by 30–50%. [19] Most experts agree that such investments should have a long-term character, as the rise of the platinum price is relatively slow – about 80% over the last 5 years, except for a rapid rise followed by decline ...

  3. Coinage metals - Wikipedia

    en.wikipedia.org/wiki/Coinage_metals

    Used unknowingly in alloys since antiquity. The first pure nickel coin was the Swiss 20 Rappen of 1881. A book published by the International Nickel Company of Canada in 1933 lists dozens of coins minted out of nickel. Platinum: The Russian 3, 6, and 12 ruble coins of Nicholas I, issued 1828–1845, were the world's only circulating platinum coins.

  4. Platinum as an investment - Wikipedia

    en.wikipedia.org/wiki/Platinum_as_an_investment

    American Platinum Eagle, the official platinum bullion coin of the United States. Investment in platinum is often compared in financial history to gold and silver, which were both known to be used as money in ancient civilizations. Experts posit that platinum is about 15–20 times scarcer than gold and approximately 60–100 times scarcer than ...

  5. Metals of antiquity - Wikipedia

    en.wikipedia.org/wiki/Metals_of_antiquity

    Metal production in the ancient Middle East. The metals of antiquity are the seven metals which humans had identified and found use for in prehistoric times in Africa, Europe and throughout Asia: [1] gold, silver, copper, tin, lead, iron, and mercury.

  6. Platinum, Gold and More of the Most Valuable Substances in ...

    www.aol.com/platinum-gold-more-most-valuable...

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  7. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    One of the largest bullion coins in the world was the 10,000-dollar Australian Gold Nugget coin minted in Australia, which consists of a full kilogram of 99.9% pure gold. In 2012, the Perth Mint produced a 1-tonne coin of 99.99% pure gold with a face value of $ 1 million AUD, making it the largest minted coin in the world with a gold value of ...

  8. 'Pawn Stars:' Why a rare coin worth six figures sold for much ...

    www.aol.com/entertainment/2014-12-12-pawn-stars...

    On History Channel's hit show "Pawn Stars," a man came in to sell a 1907 Saint-Gaudens double eagle $20 gold coin. The coins are extremely rare, and some of them have sold for more than $1 million ...

  9. Achaemenid coinage - Wikipedia

    en.wikipedia.org/wiki/Achaemenid_coinage

    The Achaemenid Empire issued coins from 520 BC–450 BC to 330 BC. The Persian daric was the first gold coin which, along with a similar silver coin, the siglos (from Ancient Greek: σίγλος, Hebrew: שֶׁקֶל, shékel) represented the first bimetallic monetary standard. [5]

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