36R. Ruger – Mod. Single Six Lightweight Tri-Color (Pre-Dash, Pre-Warning) (Flat Gate, 3-Screw) – 22LR Cal. Single Action Revolver – w/4 5/8” Barrel w/Blade Front & Notch Rear Sights – Blued Finish Barrel, Lightweight Silver Frame & “Martin Hard Coat” Finish Cylinder – w/Factory Checkered Hard Rubber Grips – Only 12,530 Tri-Color Models Were Mfg. Between 1956-1959
