Columbia: a) Trade name found on inexpensive pocket revolvers of unknownmanufacture. b) Trade name used by H.C. Squires on shotguns.Columbia Arms Company: Registered trade name of Henry Keidel, Baltimore, Maryland.Columbian: Trade name found on inexpensive pocket revolvers of unknownmanufacture.Columbian Firearms Company: a) Trade name used by the Maltby, Henly and Company on inexpensive pocketrevolvers. b) Trade name used by the Crescent Firearms Company on shotguns