1827 E. LARNED ST. PAT. JULY 3, 1923 OTHERS PEND. DETROIT, MICH 789″. 3 1/4″ wide x 1 1/2″ diameter. Steel body. Steel shackle. Steel dial. Overall nickel plated. Harry Williams Patent # 1666078. See also “Paul Lock Co.” #2751. The patent must have been sold to the “Paul Lock Co.”