Charles Barber's Flowing hair design in gold, one of about 20 believed to exist. The planchet stock was rolled such that the gold examples have striated surfaces. These were believed to have been struck from shaved half eagle stock.
For additional information on this and other patterns for international coinage, click here. The earliest occurrence appears to be Sampsonís 12/29/1885 Auction Sale in lot 583.
For some pedigree information click here.
It was also part of a goloid set. To view Barber's set which included this design, click here.
Note: Although many reference works state that there are two examples in the Smithsonian, there is in fact, only one example, the Lilly coin.
They were also struck in the following metals.
J1658/P1858 copper with over a dozen are known.
J1659/P1859 aluminum with at least 4 known.
Photo courtesy of Bowers and Merena.