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  2. US Presidential Dollar Coins Worth the Most Money — You Could ...

    www.aol.com/us-presidential-dollar-coins-worth...

    As a way of honoring more presidents, the U.S. Mint began issuing Presidential Dollar coins in the 2000s. Most are worth about face value, but a couple are valued in six figures due to errors .

  3. 4 Decades of Valuable Coins: See Which Are Worth the Most ...

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    1960 Ben Franklin Half Dollar — Worth at least $11 or $12 today, ... Slight differences in minting or condition can make a coin either worth thousands of dollars, or relatively worthless.

  4. 9 Rare American Coins That Are Worth a Lot of Money - AOL

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    You can find these pennies selling for hundreds to thousands of dollars on eBay, but one of the pricier coins in mint condition sold for $159,000. 1925-D Lincoln Penny: $21,600+

  5. Currency-counting machine - Wikipedia

    en.wikipedia.org/wiki/Currency-counting_machine

    A typical counter of presorted coins uses a bowl with flat spinning disc at the bottom to distribute coins around the bowl perimeter. An opening in the edge of the bowl is only wide enough to accept one coin at a time. Coins either pass through a light-beam counter, or are pushed through a spring-loaded cam that only accepts one coin at a time.

  6. Timor-Leste centavo coins - Wikipedia

    en.wikipedia.org/wiki/East_Timor_centavo_coins

    Timor-Leste centavo coins were introduced in Timor-Leste (East Timor) in 2003 for use alongside United States dollar banknotes and coins, which were introduced in 2000 to replace the Indonesian rupiah following the commencement of U.N. administration. One centavo is equal to one U.S. cent. Coins issued for general circulation are in ...

  7. Change-making problem - Wikipedia

    en.wikipedia.org/wiki/Change-making_problem

    Coin values can be modeled by a set of n distinct positive integer values (whole numbers), arranged in increasing order as w 1 through w n.The problem is: given an amount W, also a positive integer, to find a set of non-negative (positive or zero) integers {x 1, x 2, ..., x n}, with each x j representing how often the coin with value w j is used, which minimize the total number of coins f(W)

  8. 15 Valuable American Coins and Which US States You’re Most ...

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    Today, there exists 11 to 15 in collectors’ hands. 1838-O Capped Bust Half Dollar – The New Orleans mint was the first to produce silver coins, striking only 20 of this particular piece. Nine ...

  9. Play money - Wikipedia

    en.wikipedia.org/wiki/Play_money

    At its most basic level, play money refers to faux paper money, but some games can include coins, or more abstract tokens representing more generic resources (such as energy). [ 2 ] : 25-26 Play money also encompasses virtual currencies in the complex in-game economies of MMORPGs , but again unlike older physical play money, in-game virtual ...