Caption:
Colt's new model army metallic cartridge revolving pistol. The Colt M1878 is a double-action revolver that was manufactured by Colt's Manufacturing Company from 1878 to 1907. It is often referred to as the 'Frontier' or the 'Double Action Army' revolver. The design of the Model 1878 was based on the Model 1877, which in turn was based heavily on the design of the earlier Colt Single Action Army revolver. The Model 1878 had a larger frame than the Model 1877, which allowed it to fire larger and more powerful cartridges. 1878 advertisement, (cropped and cleaned).