Pics tell the story. This is a Frankengun.
First, the thing has been seriously refinished, but the job was not done well.
Second, that barrel and frame are from completely different eras. In fact, I'm not sure how that extractor rod knob even fits under the barrel. The machined notch is the type used after the knob shape changed in c. 1927.
Also note the absence of a serial number on the barrel flat. That barrel should have a number in that location, but it would not match the one on the butt. Makes you wonder what number is on the cylinder and yoke.
Based on the picture, I don't see how you can even interpret what is on the butt. There is a swivel hole drilled and I do not even see a complete serial number.
Anyway, the best one can say about this revolver is that it is a plinker/shooter. Treat it for what it is, and be done. "It shore ain't old Uncle Joe's collectible."
Oh, and by the way, that swivel hole is in the wrong place - hence, not a factory installation.