Ruger Old Model Blackhawk, .41 magnum cal. single action revolver.  Serial #40-01692, mfg. 1969.  Very good condition.  Flat top, three screw, pre-transfer bar.  4 3/4" barrel has an excellent bore, fixed blade front sight and adjustable rear sight.  Barrel, frame and trigger guard are 95% blue finish.  The cylinder has three areas of moderate storage pitting.  The action locks up solid.  Ruger black eagle in smooth wood walnut grips.  A tougher Blackhawk to find in powerful .41 magnum.  C&R OK.