Voting period is over. Please don't add any new votes. Voting period ends on 31 Oct 2015 at 16:17:28 (UTC)
Reason
High quality, high EV, obscenely rare. The Half-union is a $50 gold pattern coin minted in 1877. Two slightly different designs were produced with only one coin of each design struck. The denomination (which would have been the highest for a circulating U.S. coin) was rejected. The coin was designed by
William Barber (obverse) and
James B. Longacre (reverse).
Original
A pair of
Half-union gold $50 pattern coins (1877). The design of the head (i.e., size, lower part of the hair) is different. Each gold coin is unique (not the only one known, the only one struck).