Gold off-metals are among the most coveted and fascinating coins known. Occasionally, a regular issued coin struck in a lower base metal is struck in gold for presentation purposes or possibly struck unofficially. The most famous examples are the United States Indian Cents struck in gold, the two known United States Pan Pac Commemorative Half Dollars struck in gold and this unique 1913 Buffalo Nickel struck on a U.S. $5 Gold planchet.

Recently, this Gold Buffalo Nickel crossed to PCGS: