Scarce Colt third model Derringer. This is the 1st type with the protruding bolster for the frame screw, (also known as the “pregnant frame model”. This is the later variation with serial #933. The later production of the 1st type goes from serial #200 thru 2000. Bore is fair with rifling and wear with corrosion barrel. Shows light pitting. Action works fine. Scarce Colt. (DALLAS LOCATION)