This rifle from J.H. Johnston's Great Western Gun Works on Smithfield Street in Pittsburgh, Pennsylvania, in the latter half of the 19th century remains in very high condition and appears to have seen little if any use. Both .50 caliber rifled barrels are browned and are marked "CAST STEEL" on the right flats. The upper barrel is also marked "J.H. JOHNSON" followed by "GREAT WESTERN/GUN WORKS" and "PITTSBURGH" on top and is equipped with a nickeled brass front sight and adjustable sporting rear sight. A pair of ramrods are fitted to the sides. The back action locks are marked "J.H. JOHNSON" (left side double stamped). The rifle is equipped with adjustable double set triggers. If both locks are cocked, both will fire when the trigger is pulled. The spurred trigger guard, buttplate, and toe plate are nickel plated brass while the patchbox and oval inlay on the bottom of the stock appear to be German silver. The stock has a checkered wrist.

Very fine with 80% plus original brown finish along the barrels with minor fading and distinct markings. 40% original case colors, some fading of the nickel, light aged patina on the furniture, and very minor age and storage related wear overall. The stock is also very fine and has crisp checkering, smooth oiled finish, and light dings and scratches. Mechanically fine. The prior owner noted that "while plain, this rifle exhibits fine workmanship and design throughout. There are few double rifles that will top it."