Cobray Model D, .45 Long Colt cal. single shot derringer.  Serial #45 24018.  Good condition.  3 3/8" barrel is threaded near the muzzle and has a very good bore, fixed sights.  80% matte black finish with general finish wear.  The action works fine.  Cobray marked smooth composite grips with the left grip having a horizontal crack repair.  Very compact. for a .45! Do NOT shoot full-house ammo in these!