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Mints use hubs bearing raised images similar to the images that appear on a coin to imprint indented images onto the ends of steel rods. Those rods become the dies which strike planchets making them into coins. Hub and die errors can occur at the time the dies are made, when the dies are installed into presses, and from die deterioration during ...
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.
1955 DDO Lincoln Penny: $125,000-plus. The 1955 DDO (double die) Lincoln Penny owes its rarity to a misalignment during the minting process that created a “double image” effect on the coin’s ...
Estimated value: Between $250,000 and $2 million The 1974 Aluminum Lincoln Cent is an elusive and highly valuable coin, notable for its unique composition. In 1974, the U.S. Mint experimented with ...
That is the 1972 Doubled Die Lincoln cent with doubling of letters on the front of the coin. The NGC Price Guide states: “The 1972 Doubled Die obverse Lincoln cent is very popular among collectors.
However, it too wears the dies when they are used for too long. An infamous example is the 1955 "poorman’s double die." This coin is sold as a replacement for the 1955 doubled die cent, but it is no more than Die Deterioration Doubling, caused by wear on the dies. When a coin is struck, the planchet is not heated. Although the planchet would ...
A die crack occurs when a die, after being subjected to immense pressure during the minting process, cracks, causing a small gap in the die. [3] If this damaged die continues to produce coins, the metal will fill into the crack, thus revealing a raised line of metal in the finished coin.
Doubled die varieties, when noticeable to the naked eye or occur in a popular coin series, are extremely popular with collectors and can be worth a large premium over the same coin without the doubling. The most popular doubled die variety would be the 1955 US cent doubled die [1] which typically sells for over $1000 at auction. [2]