“DIAMOND 6-LEVER” – 3 Arm Levers – No Pins – Letter Style 1 – Short “L” – Patent
2.227″ diameter x .565″ deep. The “S.B.CO.” trademark is stamped on the obverse of the shackle. “PAT. APRIL 2. 1895” is stamped on the reverse of the shackle.Patent # 536844. (Variation).