The Philadelphia Mint overdate is the more distinct and scarcer of the errors, with the “1” closing the loop on the “2.” On the Denver Mint overdate, the “1” is barely discernible. An unknown number of dimes were struck with the production dies before the error was detected. The result was working dies with a “2” sunk over the “1” of the date. Both were produced when production dies in the preparation process were first sunk with a 1941-dated hub die and then, by accident, finished with 1942 hub dies. Q: Can you explain what is meant by a 1942/41 dime? Is it a dime struck with a dual date?Ī: Two major “overdate” Mint errors exist for 1942, one from the Philadelphia Mint and one from the Denver Mint.

The following Q&A is excerpted from Clifford Mishler’s Coins: Questions & Answers: