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A well known example of a small mint mark is 1945-S "Micro S" U.S. Mercury dime, when the mint used an old puncheon intended for Philippines coins. [14] A much rarer example is the 1892-O "Micro O" U.S. Barber half dollar , which may have come about from the brief use of a mintmark puncheon intended for the quarter. [ 15 ]
Doubled die coins are mainly created by a defective hub which is used to create many dies for the minting process. Collectors classify doubled dies as DDO (doubled die obverse coins), DDR (doubled die reverse) and OMM (over mint mark). The over mint mark is created when a one date and mint mark is punched over another date, part of a date, or ...
You don’t usually see errors with proof coins, but there are exceptions. One involved 1975 dime proof sets, which that lacked an “S” mintmark (from the San Francisco Mint).
6. 1982 and 1983 Roosevelt Dimes, No Mint Mark Some dimes from 1982 and 1983 were minted without a mint mark, and these varieties can be of interest to collectors.
Some of the rarest and most valuable coins in U.S. history owe their worth to minting errors that slipped through unnoticed. Coins like the 1943 Copper Penny, struck in copper instead of wartime ...
Mint officials considered putting Franklin on the dime in 1941, but the project was shelved due to heavy demands on the Mint for coins as the United States entered World War II. [7] During the war, the Mint contemplated adding one or more new denominations of coinage; Sinnock prepared a Franklin design in anticipation of a new issue, which did ...
Below are the mintage figures for the Washington 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
Below are the mintage figures for the United States quarter up to 1930, before the Washington quarter design was introduced. 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 ...
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related to: 1959 dime error no mint mark on top back of quarter roll