This Ruger manufactured base pin is for the old model 3 screw Blackhawk single action revolver in 30 Carbine and 44 Magnum caliber and is in very good condition with light wear. (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 & 50-06496.
44 Magnum: