The Panama-Pacific Exposition Gold Dollar was released in 1915 to commemorate the Panama-Pacific International Exposition. The Exposition was held in San Francisco and celebrated the successful completion of the Panama Canal.
Proceeds from sales of the coins went to offset the costs of the 1915 Panama-Pacific International Exposition, held in San Francisco.
The obverse design features a head, representing labor, through whose efforts the Panama Canal became a reality.
The reverse features two dolphins, symbolizing the meeting of the two oceans as brought about by the building of the Panama Canal.