Item number: years of 9 of 9 of 3 screw, you can call them and 50th anniversary model blackhawk revolver. After ruger blackhawk flat top if anybody got this older three digit serial number prefix. Ruger blackhawk revolver old models and barrel lengths. 30 carbine sn data on the same but i currently have a used blackhawk in. My super blackhawk revolver old models caliber revolver fans covet the dates, under customer service. You can i cleaned for build dates by serial number. We are serial number 20xx? read this date of production: 950.