This Ruger manufactured second variation walnut grip panels with the black Phoenix medallions are for the old model 3 screw Blackhawk single action revolver with the "XR3-RED" marked grip frame and is in very good condition with light dings and handling marks. (file photo)
Note: Ruger old model Blackhawk revolvers with the following calibers and serial numbers have been observed with this part:
30 Carbine: 50-01796
357 Magnum: 90888