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  2. Coin weights - Wikipedia

    en.wikipedia.org/wiki/Coin_weights

    Coin weights are weights used to weigh precious-metal coins in order to assure they were not underweight (It is easy to shave a bit of metal off the edge of a silver or gold coin). [ 1 ] The usage of coin weights, especially glass ones, goes back to Ptolemaic and Byzantine times. [ 1 ]

  3. Deben (unit) - Wikipedia

    en.wikipedia.org/wiki/Deben_(unit)

    Stone weights from the Old Kingdom have been found, weighing about 13.6 g (0.48 oz; 0.44 ozt), giving presumed value of the gold deben, e.g. the weighing stone of king Userkaf. [5] The same unit was used for the jasper weighing stone of the First Intermediate Period king Nebkaure Khety .

  4. Coin base weight - Wikipedia

    en.wikipedia.org/wiki/Coin_base_weight

    However, their currency value, which corresponded to their real value, only depended on the fine silver content, which resulted from the interplay between the coin base weight and the coin standard. The exact weight of the Cologne Mark could vary slightly from region to region. The Prussian specification of 233.855 grams became the binding coin ...

  5. Tael - Wikipedia

    en.wikipedia.org/wiki/Tael

    The tael is a legal weight measure in Hong Kong, and is still in active use. [2] In Hong Kong, one tael is 37.799364167 g, [ 2 ] and in ordinance 22 of 1884 is 1 + 1 ⁄ 3 oz. avoir. Similar to Hong Kong, in Singapore, one tael is defined as 1 + 1 ⁄ 3 ounce and is approximated as 37.7994 g [ 3 ]

  6. Experts Explain How To Assess Whether Your Old Coins or Bills ...

    www.aol.com/experts-explain-assess-whether-old...

    Coin collecting, sometimes called numismatics, can be more than a hobby for some. It can be a money-making investment. The same goes for collecting, saving or reselling old paper money. Learn: 5 ...

  7. Trump wants to scrap pennies. What does that mean for the ...

    www.aol.com/trump-wants-scrap-pennies-does...

    Dimes cost about 5.8 cents, quarters cost 14.7 cents and half dollars cost about 34 cents, according to the Mint. Pennies and nickels have incurred production costs that exceed their face values ...

  8. As Trump aims to ax the penny, these are the coins that cost ...

    www.aol.com/news/trump-aims-ax-penny-coins...

    A quarter cost 23% more to make last year than it did in 2023; the penny cost 17% more. The U.S. Mint has been producing fewer pennies and nickels in recent years to minimize losses.

  9. List of most expensive coins - Wikipedia

    en.wikipedia.org/wiki/List_of_most_expensive_coins

    List of most expensive coins Price Year Type Grade Issuing country Provenance Firm Date of sale $18,900,000 1933 1933 double eagle: MS-65 CAC United States: King Farouk of Egypt: Sotheby's [1] June 8, 2021 $12,000,000 1794 Flowing Hair dollar: SP-66 CAC United States Neil, Carter Private sale [2] January 24, 2013 $9,360,000 1787 Brasher ...