Manufactured from 1914 to 1915 and is the double action triple lock pattern of the .455 Mark II Type revolver. The barrel has the two-line address/patent marking on top and no other markings. The cylinder is unproofed and numbered to match the frame and crane. The frame is marked with assorted British proofs, broad arrow acceptance marking and the Canadian crossed pennant mark. The grips are checkered with diamond pattern around the screws and inset S&W medallions.