The 1964-1971 version of the coin is 90% silver and 10% copper, the same composition as Mercury Dimes. Determining the rarity and potential value of your JFK Half Dollars can be an exciting process.

Analyses of new data from the spacecraft reveals a host of firsts: evidence of widespread flood volcanism on the planet’s surface, close-up views of Mercury’s crater-like depressions, direct ...

You never know when you might come across a valuable error coin, so it helps to know what to look for. Error coins can be divided into the following general ...