It was intended to print the Trans-Mississippi issue with a black vignette and a frame in color. The bi-color idea had to be abandoned because of the fact that the Spanish American War, which broke out in April, 1898, necessitated the printing of enormous quantities of revenue stamps and the facilities of the Bureau were taxed to the utmost . The time and manpower needed for the printing of stamps in two colors could not be spared and it was necessary for the Bureau to abandon the proposed bi-color stamps in favor of stamps of single colors.

For the vignette was based on the watercolor "Buffalo Chase" by Captain Seth Eastman, picturing Santee Dakota natives on a buffalo hunt.

Bison hunting was an important spiritual practice and source of material for these groups, especially after the European introduction of the horse in the 16th through 18th centuries enabled new hunting techniques. The species' dramatic decline was the result of habitat loss due to the expansion of ranching and farming in western North America, industrial-scale hunting practiced by non-indigenous hunters, increased indigenous hunting pressure due to non-indigenous demand for bison hides and meat, and cases of deliberate policy by settler governments to destroy the food source of the native Indian peoples during times of conflict.

Sioux Buffalo dance

A first day cover of #287, dated June 17th, 1898