United States 1913 Panama-Pacific Exposition Issue, Complete Set

United States · 1913 · 1¢, 2¢, 5¢, 10¢

This commemorative set celebrates the 1915 Panama-Pacific International Exposition held in San Francisco. The designs feature historical figures and scenes related to the discovery and construction of the Panama Canal, including Vasco Núñez de Balboa, the Pedro Miguel Locks, the Golden Gate, and the discovery of San Francisco Bay.

Issued to promote the world's fair celebrating the completion of the Panama Canal and the 400th anniversary of the discovery of the Pacific Ocean, these stamps were the first U.S. commemoratives printed in four denominations.