The 5-cent stamp of the Panama-Pacific Exposition Issue was produced with two variations: the first, issued in 1913, has perforations 12; the second, issued in 1914, has perforations 10. The third denomination of the Issue portrays the Golden Gate entrance to San Francisco harbor.
The 5-cent stamp most often paid the single-weight Universal Postal Union International rate. It was also commonly used with other denominations to fulfill large weight and foreign destination rates. The Bureau of Engraving and Printing produced approximately 29 million of these 5-cent stamps.