sentences:  The Texas Navy had purchased the earlier Colt Paterson Revolver, but this was Colt's first major success in the gun trade; the naval theme of the engraved cylinder of the Colt 1851 Navy revolver was Colt's gesture of appreciation.The engraving was provided by Waterman Ormsby.Despite the "Navy" designation, the revolver was chiefly purchased by civilians and military land forces.