1915-S G$1 Panama-Pacific MS64 认证号21270675, PCGS号7449

The Panama-Pacific Exposition was held in 1915 for the completion of the Panama Canal and the rebirth of San Francisco after the earthquake of 1906. As part of the exposition, commemorative coins in the denominations of half dollar, one dollar gold, quarter eagle and two varieties of quintuple eagle, were minted at the exposition. The obverse of gold dollar depicts a canal worker (sometimes mistaken for a baseball player). The reverse shows the denomination One Dollar surrounded by a pair of dolphins representing the binding of the two oceans by the canal. The San Francisco Mint issued 25,000 coins of which 10,000 were returned to be melted, leaving a net mintage of 15,000. The coins were sold at the exposition for $2.25 each, later reduced to $2.00. The issue met with lukewarm acceptance with few being sold. Counterfeits exist, so that all coins should be authenticated by a third party grading service before acquisition. Several proofs with mirror-like fields were produced with and without the S mintmark, some without reeding, and some in silver. All are extremely rare. The business strikes are common in grades to MS65, but increasingly scarce in grades thereafter. The issue is the most common of the commemorative gold dollars in high grades. As part of the celebration of the exposition four stamps were issued. The philatelic tie-ins to the half dollars are a one-cent green Balboa, a two-cent Panama Canal, a five-cent Golden Gate, and a ten-cent Discovery of San Francisco Bay stamps