This coin has the?

Gold coins are gold in color. They are made of gold. They came from the US but they were made many years ago. They also came from other world countries.

Clad coins have copper and nickel in the middle. They were made in the US after 1964. 1964 was the last year that the US made solid silver currency. I don't know what uc means, but unc is short for...

They re-sell them (they only pay you a fraction of the value.)

It's not quite clear what you mean. ALL coins are made in mints, by definition. If you mean a MINT STATE coin, it's a coin that's exactly as it was when it was struck, without being in circulation....

I believe that you are referring to Yap, an island in the Pacific which historically used large stone discs with a hole in the center (like a millstone used to grind grain) as money. These "coins"...