That's a mint mark. it shows where the coin was made. A D or S stamped on a coin shows whether it was minted in Denver or San Francisco. A P goes on coins made in Philadelphia, except for pennies.

A special .9999 fine gold Sacagawea dollar issue to be struck at the West Point Mint is planned for the coin's 25th ...

Some Mint Mark customers had wondered whether moving the beloved restaurant was a good idea, said co-owner Sean Pharr, and ...

especially for old coins like these. Mint marks are small letters found on coins to indicate the specific mint facility where they were produced. For JFK Half Dollars, the mint mark is located on ...

Inscriptions are “LIBERTY” and “IN GOD WE TRUST.” The coins continue to retain their distinctive edge-lettering and golden ...