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This overdate error, found on dimes produced at both the Philadelphia and Denver Mints, occurred when the date on the die was changed from 1941 to 1942, but remnants of the original “1” were ...
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.
Strike Errors: “Striking” is a part of the minting process when the design from the die is impressed onto the coin. Strike errors include off-center or misaligned strikes and designs struck on ...
Errors on ancient, medieval, and higher-value coins, however, may be detrimental to the coin's numismatic value. Notable Australian coin varieties and errors [ edit ]
In modern presses, a die strikes approximately 120 coins a minute. This is a large number of coins produced in a short time, and obviously the die cannot last forever. However, the process of wearing the die is only hastened by the metals used in coins. Nickel, one of the main metals used in today’s coins, is quite hard and causes wear ...
The only other known dime missing the “S” mint is one also made in 1975 that was sold for $456,000 at auction in 2019. It was later sold a second time to a private collector.