$3 Indian Princess Coin
The $3 Indian Princess gold coin is one of the more unusual coins in U.S. history. The $3 Indian Princess was minted from 1854-1889, with a very low production and is the only three dollar gold coin in American coinage. No one is certain why the coin was originally created but some numismatists believe it was for the purchase of 3-cent postage stamps in sheets of 100. Whatever the reason, the $3 gold piece was minted for only 36 years, making it the shortest-lived of any denomination of gold coin released for general circulation in the United States.