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  2. Coin wrapper - Wikipedia

    en.wikipedia.org/wiki/Coin_wrapper

    As the UK has traditionally relied on weight when counting coins, a conscious effort was made to ensure that the weight of 1p, 2p, 5p & 10p coins remained constant following the changes to their composition (from copper to copper-plated steel in 1992 for the 1p & 2p, and the 2008 change from copper-nickel to nickel-clad steel for the 5p & 10p ...

  3. Nickel (United States coin) - Wikipedia

    en.wikipedia.org/wiki/Nickel_(United_States_coin)

    A nickel is a five-cent coin struck by the United States Mint.Composed of cupronickel (75% copper and 25% nickel), the piece has been issued since 1866.Its diameter is 0.835 inches (21.21 mm) and its thickness is 0.077 inches (1.95 mm).

  4. Coin roll hunting - Wikipedia

    en.wikipedia.org/wiki/Coin_roll_hunting

    After 1968, coins were minted in very high numbers, making silver coins uncommon, plus the introduction of silver-rejecting bank machines took many silver coins out of circulation. This all made silver too hard to find for coin roll hunters, so they primarily searched for 1922-1964 nickels for their numismatic value and 1965-1981 Nickels for ...

  5. 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 ...

  6. United States nickel mintage figures - Wikipedia

    en.wikipedia.org/wiki/United_States_nickel...

    Jefferson nickels have been minted since 1938 at the Philadelphia and Denver mints and from the San Francisco mint until 1970. Key dates for the series include the 1939-D, and 1950-D nickels. The 1939-D nickel with a mintage of 3,514,000 coins is the second lowest behind the 1950-D nickel.

  7. Coins of the United States dollar - Wikipedia

    en.wikipedia.org/wiki/Coins_of_the_United_States...

    The Quarter-Dollar, Half-Dollar and Dollar coins were issued in the copper 91.67% nickel 8.33% composition for general circulation and the Government issued six-coin Proof Set. A special three-coin set of 40% silver coins were also issued by the U.S. Mint in both Uncirculated and Proof.

  8. United States Mint coin production - Wikipedia

    en.wikipedia.org/wiki/United_States_Mint_coin...

    This table represents the mintage figures of circulating coins produced by the United States Mint since 1887. This list does not include formerly-circulating gold coins, commemorative coins, or bullion coins. This list also does not include the three-cent nickel, which was largely winding down production by 1887 and has no modern equivalent.

  9. Red box (phreaking) - Wikipedia

    en.wikipedia.org/wiki/Red_box_(phreaking)

    A red box is a phreaking device that generates tones to simulate inserting coins in pay phones, thus fooling the system into completing free calls. In the United States, a nickel is represented by one tone, a dime by two, and a quarter by a set of five. Any device capable of playing back recorded sounds can potentially be used as a red box.