Cowboy Bob's Dictionary

Colt Single Action Army Revolver

Colt Single Action Army revolver

Illustration from an 1870s catalog, published in Four thousand years of the world's progress from the early ages to the present time by Samuel J. Burr, published in 1878. The revolver's retail price was twenty dollars.

Illustration courtesy Library of Congress, Prints and Photographs Division, Reproduction Number LC-USZ62-110403