To be certain your coin is genuine, and to greatly increase its marketability, you should have it authenticated and certified as to grade by one of the independent third-party grading services such as the Numismatic Guaranty Corporation (NGC) or Professional Coin Grading Service (PCGS). This coin should be authenticated by a numismatic expert. Uncirculated pieces are very scarce and are worth more than $1500. It’s worth at least $400 in average circulated condition. This coin error is very popular with collectors because of its unusual appearance, especially on the Philadelphia example. The 1942-D overdate will have the “2” in “1942” almost completely over the “1” and the “D” mintmark will have been repunched, that is stamped over a “D” that was placed in the wrong position. Silver Coins: When They Ended and What They’re Worth Should I get my coin collection appraised?.With the aid of a magnifying glass your 1942 dimes are worth a second look. In the past many circulated long enough to wear considerably, leading to the possibility of finding one in any box of old coins. The close up picture of the date shows the over punching of numerals is very clear. When an uncirculated 1942/41 enters the market values often reach over $1500. Many collectors of Mercury dimes consider the coin as part of a complete set, creating a solid demand. Pictured is an example with light even wear and in this condition sold at a David Lawrence Rare Coin Auction for $634. Few were released into circulation and when discovered collectors realized the scarcity and soon began the rise in value of the coin. Coins minted using this die show a clear 2 over 1 date. A rare 1942 Mercury dime was created by the mint when preparing a die, the number '2' was punched over a '1' when the date was applied.

1942 mercury dime ddo