Generally, the earlier the coin in great condition is, the more it will be worth. Even the highest grades of Mercury Dimes minted in the 40s and late 30s (without errors or other valuable marks ...
This is due to various factors, whether it be errors in the minting process or because they stopped being put into circulation years ago. The coin in question is a mercury dime minted in Denver ...
Some of the rarest and most valuable coins in U.S. history owe their worth to minting errors that slipped through unnoticed. Coins like the 1943 Copper Penny, struck in copper instead of wartime ...