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  2. Category:Mint-made errors - Wikipedia

    en.wikipedia.org/wiki/Category:Mint-made_errors

    Print/export Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; Appearance. ... Pages in category "Mint-made errors"

  3. US error coins - Wikipedia

    en.wikipedia.org/wiki/US_error_coins

    The over mint mark is created when a one date and mint mark is punched over another date, part of a date, or mint mark. These coins are generally restricted to the early minting process of coins dating before the turn of the century. The DDO and DDR errors are related to any part of the coin that shows a distinct doubling.

  4. Mint-made errors - Wikipedia

    en.wikipedia.org/wiki/Mint-made_errors

    After an upending mill adds uniform rounded rims, the disks are called "Type-2" blanks (or planchets). Occasionally, Type-1 and Type-2 blanks aren't further processed, ‘escape’ the mint facility and enter circulation. Type-2 blanks may also be considered striking errors as they are prepared correctly, but are released without having been ...

  5. United States quarter mintage figures - Wikipedia

    en.wikipedia.org/wiki/United_States_quarter...

    The following mint marks indicate which mint the coin was made at (parentheses indicate a lack of a mint mark): P = Philadelphia Mint. D = Denver Mint. S = San Francisco Mint. W = West Point Mint. O = New Orleans Mint. CC = Carson City Mint

  6. 50 State quarter mintage figures - Wikipedia

    en.wikipedia.org/wiki/50_State_quarter_mintage...

    Print/export Download as PDF; ... The following mint marks indicate which mint the coin was made at: P = Philadelphia Mint. ... Extra leaf errors are known. [3] [4] S ...

  7. Washington quarter mintage figures - Wikipedia

    en.wikipedia.org/wiki/Washington_quarter_mintage...

    Printable version; In other projects ... The following mint marks indicate which mint the coin was made at ... Doubled die errors are known. [5] S 19,384,000 (P)

  8. Brockage - Wikipedia

    en.wikipedia.org/wiki/Brockage

    Brockages are relatively rare among modern coins of industrialised countries where mints exercise a strict production control and somewhat less rare among the modern coins of some developing countries which operate their own mint (e.g. Nepal); in good condition, coins with clear brockage are a collector's item and can sell for substantial ...

  9. Die-deterioration doubling - Wikipedia

    en.wikipedia.org/wiki/Die-deterioration_doubling

    The field of a die is the highest point, so when a mint technician polishes the die or the metal flow of a coin wears it away, the field is the first thing to be worn down. The difference here is that Outside doubling does not overlap any of the original design, but rather appears like an irregular shelf around the object.