United States 1913 Panama-Pacific Exposition Issue, Perf 12

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

This set commemorates the 1913 Panama-Pacific International Exposition in San Francisco, celebrating the opening of the Panama Canal. The designs feature Vasco Núñez de Balboa discovering the Pacific Ocean (1¢), the Pedro Miguel Locks of the Panama Canal (2¢), the Golden Gate (5¢), the discovery of San Francisco Bay (10¢), and a portrait of President William McKinley (10¢). The stamps were printed in distinct, vibrant colors.

Issued to promote the Panama-Pacific International Exposition, these stamps celebrated a major American engineering achievement—the Panama Canal—and showcased the nation's technological prowess and westward expansion.