My newest gun.
Its an old model Three Screw BlackHawk Convertable. 38/357 and a second cylinder for 9mm. They stopped making them in 1973, mine was made in 1970 (Ruger has the dates on their site)
It does not have the transfer bar so it not safe to carry six rounds, only five. ruger will change it for free but i am going to keep it this way.
For those who do not know,
From 1962 through 1972, Ruger made the "Three Screw" Blackhawk in various calibers, so called by the number of screws visible on the side of the revolver.
The Flattop and Three Screw Rugers were modernized compared to the Colt Single Action Army, in that they had adustable sights instead of the Colt's fixed sights, and they used wire coil springs instead of the Colt's flat leaf springs. Bill Ruger chose coil springs due to their greater durability, claiming that it solved one of the primary weaknesses of the Colt design.
The early models of the Blackhawk still operated the same way as the Colt, in that the hammer was half-cocked to load and unload, and that the firearm was not safe to carry with all six chambers loaded due to the hammer resting upon the sixth chamber. In 1973, in order to eliminate accidents occurring from the hammer jarring against a round loaded in the sixth chamber, Ruger introduced the New Model Blackhawk. The New Model Blackhawk did not require the hammer to be half-cocked for loading and unloading, and employed a transfer bar mechanism which prevented the cartridge under the hammer from being fired without the trigger being pulled. The New Blackhawk was seen as limiting firearms accidents and legal liability. Ruger then began offering a retrofit program, offering free transfer bar conversions to earlier variants of the Blackhawk.
The owner died a couple years ago and his son is slowly selling a huge collection.
Mine is a 6 1/2 inch barrel but here is a photo
I want to get a Three Screw in 41 and 44 next