Probably an assembly number.
Double action revolver
No more than 100 USD
Blue Book of Gun Values
the 'victor double action' series of revolver were marketed as a direct competitor to Iver Johnson's u.s. revolver co. double action (1910-1935).
Well, yes and no. The traditional "Western" revolver, such as a Colt Peacemaker, was a single action. However, the Colt Lightning and the Thunderer were double action. High Standard also made revolvers that were similar in appearance to the Colt Peacemaker, but were double action. And there must be more. The Starr Double Action .44 black powder cap and ball revolver began production in the late 1850s.
Smith and Wessons model 547 revolver is a double action revolver chambered in 9mm.these revolvers were made from 1980-1984.
Robert Adams (UK) patented a double action only revolver in 1851, i belive this is the first but am not an expert so someone cuold prove me wrong.
A good candidate may be the Starr Model 1858. This was a ball and cap revolver. With cartridge firearms, Forehand & Wadsworth made a .32 revolver inn what we would today recognize as a "double action: revolver. However, there were earlier "double action only" pepper box pistols.
Redhawk is a double action revolver, as opposed to the single action Blackhawk.
A double action firearm requires you to pull back the hammer before you can fire it.