Mercury dimes are unique American coinage minted from 1916 to 1945. However, specimens from the 1942 set are complex, with a few specific errors worth collecting. Weinman created one of the most beautiful small American coins. These pieces are part of a series that production started in 1916 after Adolph A. They were minted during WWII and had a unique composition adapted to the then-wartime conditions. In most cases, the 1942 dime value is more than these coins’ face value, but it always depends on their appearance and absence of damage. FAQ about the 1942 Winged Liberty Head Silver Dime.1942 Winged Liberty Head Silver Dime Grading.