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  2. American Gold Eagle - Wikipedia

    en.wikipedia.org/wiki/American_Gold_Eagle

    The 1 ⁄ 10, 1 ⁄ 4, and 1 ⁄ 2 troy oz coins are identical in design to the 1 troy oz coin except for the markings on the reverse side that indicate the weight and face value of the coin (for example, 1 OZ. fine gold~50 dollars). The print on the smaller coins is, therefore, finer and less legible than on larger denominations.

  3. Coin grading - Wikipedia

    en.wikipedia.org/wiki/Coin_grading

    Coin grading [1] is the process of determining the grade or condition of a coin, one of the key factors in determining its collectible value. A coin's grade is generally determined by six criteria: strike, preservation, luster, color, attractiveness, and occasionally the country/state in which it was minted.

  4. Comparison of the imperial and US customary measurement ...

    en.wikipedia.org/wiki/Comparison_of_the_imperial...

    Wine was measured with units based on the wine gallon of 231 cubic inches (3.785 L), beer was measured with units based on an ale gallon of 282 cubic inches (4.621 L) and grain was measured with the Winchester measure with a gallon of approximately 268.8 cubic inches (one eighth of a Winchester bushel or 4.405 L). In 1824, these units were ...

  5. American Silver Eagle - Wikipedia

    en.wikipedia.org/wiki/American_Silver_Eagle

    The set included proof American Gold Eagle coins in 1/2 ozt, 1/4 ozt, and 1/10 ozt sizes, a proof Silver Eagle coin, and a 90% silver proof "U.S. Mint Bicentennial" medal, all with "P" mintmarks. [28] In 1995, in addition to the regular proof coin minted at Philadelphia, the United States Mint also issued a proof coin minted at West Point.

  6. Libertad (coin) - Wikipedia

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

    1 ⁄ 20 oz 1 ⁄ 10 oz 1 ⁄ 4 oz 1 ⁄ 2 oz 1 oz 1983 88 1989 704 2004 200 200 1,800 200 200 2005 400 400 3,920 720 570 2006 520 520 2,120 520 520 2007 500 500 1,500 500 500 2008 800 2009 600 600 1,700 600 600 2010 1,000 2011 1,100 1,100 2,000 1,100 1,100 2013 300 300 600 300 400 2014 250 250 250 250 250 2015 500 500 500 500 500 2016 2,100 ...

  7. Pennyweight - Wikipedia

    en.wikipedia.org/wiki/Pennyweight

    A pennyweight (dwt) is a unit of mass equal to 24 grains, 1 ⁄ 20 of a troy ounce, 1 ⁄ 240 of a troy pound, approximately 0.054857 avoirdupois ounce [1] and exactly 1.55517384 grams. [2] It is abbreviated dwt , d standing for denarius – (an ancient Roman coin), and later used as the symbol of an old British penny (see £sd ).

  8. Australian Silver Kangaroo - Wikipedia

    en.wikipedia.org/wiki/Australian_Silver_Kangaroo

    The Silver Kangaroo series was introduced in 1993. [1] Silver Kangaroo coins are usually issued in two forms: a proof coin and a frosted uncirculated coin, although coins with selective gold plating have also been issued from 2003. [citation needed] The purity of the coin was 99.9% until 2014, then it was increased to 99.99% from 2015 ...

  9. 1933 double eagle - Wikipedia

    en.wikipedia.org/wiki/1933_double_eagle

    In 1933, in an attempt to end the 1930s general bank crisis, U.S. president Franklin D. Roosevelt issued Executive Order 6102, which provisions included: . Section 2. All persons are hereby required to deliver on or before May 1, 1933, to a Federal Reserve bank or a branch or agency thereof or to any member bank of the Federal Reserve System all gold coin, gold bullion, and gold certificates ...