Even among the most involved of coin collectors, certain coins hold a special status as legendary. This rare quarter is one of those legends.

A recent study by Dr. Ignacio Montero-Ruiz and his colleagues examined the provenance of ancient copper artifacts discovered on the Island of Ibo off Mozambique's coast. The study, published in Azania ...

Collectors hunting for valuable coins don't have to reach back a century or more to find them -- they can pop back a few ...