Key Bridge coins: They worked for the U.S.S. Constellation. The steel salvaged from the deck of the Dali and the bottom of the Patapsco River can certainly be piled up and sold for salvage for a few ...

Last week I wrote about “key” coins, meaning the coin is one of the rarest (hence most expensive) coins in a set. My suggestion in that column was that one collecting option is to focus on just the ...