A 6-shot revolving rifle, chambered for .36-caliber percussion. Comes with 21", 24", 27" or 30" round barrel that is part octagonal where it joins the frame. Stock is walnut, with an oil- or varnish-finish. Frame, hammer and loading lever are case colored; rest of the metal blued. Hammer is on right side of frame. 1st Model has no forend and an oiling device is attached to the barrel underlug. Triggerguard has two spur-like projections in front and back of bow. Roll-engraved cylinder scene depicts a hunter shooting at five deer and is found only on this model. Standard stampings are "Colt's Pt./1856" and "Address S. Colt Hartford, Ct. U.S.A.".