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  2. Coins of the Swiss franc - Wikipedia

    en.wikipedia.org/wiki/Coins_of_the_Swiss_franc

    In 1925, 5,000 pieces of a 100 francs version were minted. The first series of banknotes, issued 1907, included no 10 or 20 francs denomination. The gold coins existed in circulation alongside the corresponding banknotes during 1911–1936. With the devaluation of 1936, the gold value of the 20 franc coin rose to 28 francs.

  3. Vreneli - Wikipedia

    en.wikipedia.org/wiki/Vreneli

    The coin exists in three denominations, of 10, 20 and 100 francs. The 20 franc coin was produced from 1897 to 1949 with a total issue of 58.6 million pieces. It replaced an earlier design of gold coin minted from 1883 to 1896. The 10 franc version was minted from 1911 to 1922 (total issue 2.6 million pieces), and the 100 franc version was ...

  4. Napoléon (coin) - Wikipedia

    en.wikipedia.org/wiki/Napoléon_(coin)

    The coins were originally minted in two denominations, 20 and 40 francs for Napoléon Bonaparte. The 40-franc gold piece did not become popular. [8] The 20 franc coins are 21 mm in diameter (about the size of a U.S. five-cent piece or a Swiss 20 Rappen coin), weigh 6.45 grams (gross weight) and; at 90% pure, contain 0.1867 troy ounces (5.807 g) of pure gold.

  5. Swiss franc - Wikipedia

    en.wikipedia.org/wiki/Swiss_franc

    Gold coins in denominations of 10, 20, and 100 francs, known as Vreneli, circulated until 1936. [58] Both world wars only had a small effect on the Swiss coinage, with brass and zinc coins temporarily being issued. In 1931, the mass of the 5 franc coin was reduced from 25 grams to 15, with the silver content reduced to .835 fineness.

  6. List of most expensive coins - Wikipedia

    en.wikipedia.org/wiki/List_of_most_expensive_coins

    $20 AU-53 United States Heritage Auctions November 2021 $1,610,000 1861 Paquet $20 United States Dallas Bank Specimen Heritage Auctions: August 2006 $1,610,000 1839/8 Type of 1838 LL $10 United States Parmelee, Clapp, Eliasberg Heritage Auctions: January 2007 $1,567,190 1991 Gold 10000 Yuan China: Taisei Coins Corporation [48] [49] April, 2011

  7. Bi-metallic coin - Wikipedia

    en.wikipedia.org/wiki/Bi-metallic_coin

    The first modern circulating bi-metallic coin was the Italian 500 lire, first issued in 1982. [7] Based on the minting process of the lire coin, A list of All bi-metallic coins can be found here. The first ever tri-metallic circulating coins were 20-francs coins introduced in France and Monaco in 1992.

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