Earning passive income doesn't need to be difficult. You can start this week. Double-denomination coins are among the most coveted curiosities in the numismatic world. As the name implies ...

These highly elusive “transitional” coins can easily fetch four figures, even in worn condition, with pristine examples commanding five figures. 1995-W $1 Silver Eagle Proof ...

The last decade of the 20th century produced coins that modern numismatic enthusiasts spend three-, four- and even five-figure sums to get their hands on today. The U.S. Mint produced collector ...