Introduced in 1878. Marked "W.F. & CO.EX." on right of barrel. Included factory letter lists this revolver by serial number in .44 S&W Russian as shipped on March 30, 1880, to M. W. Robinson, New York City, and states, "This shipment contained 100 units of this model with 6 inch barrels and nickel finishes..." The barrel has been shortened on this example.