This is a highly desirable Vickers Pattern Mk I heavy machine gun that has been assembled on a Charles Erb sideplate. An evolution of the Maxim Gun, the Vickers was a well refined heavy machine gun, with a water cooling system that permitted long strings of automatic fire without overheating. Blade front and folding peep rear sight on the top cover and a Mark II dial sight mounted on the left, which conceals the Erb markings. The water jacket is brass with steel endcaps, with a "303" marked feed mechanism and a set of smooth wood spade grips. With a steel and brass tripod, a petrol can, and a belt box containing three canvas belts, tool and two oilers.