Arago: Exhibits

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Panama-Pacific Exposition

The Panama-Pacific International Exhibition opened in San Francisco, California, on February 20, 1915. The Exposition honored the discovery of the Pacific Ocean and the completion of the Panama Canal. Four stamps were issued in conjunction with the exhibition each featuring a related historic event.

Master Collection, United States Scott 401, Panama-Pacific Exposition

The 1-cent stamp commemorates the 400th anniversary of Spanish explorer Vasco Numez de Balboa’s discovery of the Pacific Ocean on September 1, 1513. The stamp was issued on January 1, 1913.

United States Master CollectionScott 402, Panama-Pacific Exposition

The 2-cent stamp illustrates the Pedro Miguel Locks. Construction on these locks was completed in 1911. The stamp was issued in January 1913.

United States Master Collection, Scott 399, Panama-Pacific Exposition

The 5-cent stamp illustrates the Golden Gate, entrance to San Francisco bay. The stamp was issued on January 1, 1913.

United States Master CollectionScott 400A, Panama-Pacific Exposition

The 10-cent stamp commemorates the discovery of San Francisco Bay in 1769 by Spanish explorer Gaspar de Portola. It portrays a Spanish expedition party on the shores of the San Francisco Bay. The stamp was issued on January 1, 1913.