From an 1895 issue of Hardware Dealers’ magazine.
Pat. Nov. 1st 1892
Pat. May 9th 1893
Columbian Door Securer.—A dead-lock for doors. Lock and key combined with corkscrew, all in a nicely nickel-plated or polished brass case, to be carried in a vest pocket. Agents wanted, can make 150 per cent., $10 to $25 per day to the right one. Sample by mail 50 cents. J.H. MATTHEWS 312 E. Monroe St. South Bend, IND.