Yeah, but...?
Three screw Colt yet cut for shoulder stock. Wazzup wit' dat? ???
Kirk, you gotta get a copy of Charles Pate's book
The Colt Model 1860 Army Revolver.When Colt started to market his Type 3 shoulder stocks, there was no civilian interest, and just a bit more for Army contracts. Since they weren't selling, Colt included them at one stock per two revolvers (both 1851 Navy with a brass trigger guard and the 1848 3rd Model Dragoon, both 4-screw CFS) just to get rid of them. In anticipation that his Type 3 stock would be successful with the 1860 Army, Colt created many 1860 Army frames CFS, but later did not drill and tap the frames for the 4th screw escutcheons. I would not be surprised that these 3-screw CFS revolvers also had an aperture on the butt of the backstrap for the J-hook.
Jim