There's something to be said for collecting old coins. Some people do it for the fun of it or to have a cool story to tell.

Before you head to the laundromat, you should look through the quarters you plan to spend. You may have a rare coin better suited to be auctioned off or artfully displayed than used to wash your ...

Others do it in hopes of making a profit. Unfortunately, not everyone’s going to come across a truly rare coin like the 1933 “Saint Gaudens” Double Eagle (last sold for almost $19 million).