This Choice octagonal example displays rich satin luster and straw-gold patina. The devices are well struck on the vast, glistening surfaces of this hefty gold commemorative. Did you know? The first coinage of Panama-Pacific fifty dollar gold pieces was delivered on May 28, 1915. The coins were struck in a special ceremony at the San Francisco Mint, utilizing a fourteen-ton hydraulic medal press that had been shipped there from Philadelphia for this sole purpose. NGC Price Guide...$115,000.