40R. Ruger – Mod. Blackhawk Flat-Top (3-Screw) (Early Pre-Dash) – 44 Mag. Cal. Single Action Revolver – w/6 ½” Barrel w/Ramp Blade Front & Adj. Rear Notch Sights – Blued Finish – w/Factory Black Eagle Smooth Wood Grips – w/2pc. Factory Box – There Were a Total of 29,860 44 Mag Cal. Blackhawk Flat-Tops Mfg. Between 1956-1963, of That Total, 25,660 of Them Were Mfg. w/6 ½” Barrels