The 5-cent stamp of the Trans-Mississippi Exposition Issue depicts Captain John C. Fremont placing the United States flag on a peak in the Rocky Mountains. He accomplished this at the age of thirty in 1843. By the time Fremont died in 1890, he had been a Senator from California, one of the principle founders of the Republican Party, the Republican presidential candidate in 1856, and the territorial governor of the Arizona Territory. To top it all off, during the California Gold Rush, he found gold on his land and became a millionaire. Unfortunately, by his death he had lost most of his fortune in bad business investments.
The 5-cent stamp still symbolizes an exciting moment in the history of the west. The stamp was intended to be used to pay the Universal Postal Union international rate. In some cases it was used with other denominations to fulfill large weight and destination rates. A total of 7,694,180 stamps were printed by the Bureau of Engraving and Printing.