 It is not certain what became of the piece to be placed in the cornerstone, but Harmistead also struck a piece for himself, which was mounted as jewelry at one time, and the existence of which was not known until 1907.The only unique regular-issue U.S. gold piece by date and mint mark, it last came on the market in 1982, when it sold for $687,500.Today it forms part of the Harry W. Bass, Jr. Collection in the Money Museum of the American Numismatic Association in Colorado Springs.