Sidelock double-barrel shotgun, combination shotgun/rifle or double-barrel rifle, with 28" or 30" fluid steel barrels. Also available with Damascus barrels. Barrels released by pushing forward the top lever. Blued case-hardened, with straight-/semi-pistol-grip walnut stock. Barrels marked "A. E. Whitmore's Patent Aug. 8, 1871, April 16, 1872". Rib between barrels marked "E. Remington & Sons, Ilion, N.Y.". Several thousand manufactured between 1874 and 1882.