You need to find a NRA certifed firearms instructor
You can get manuals at the Smith and Wesson website.
Contact S&W and request a manual or find a good gunsmith
45 Smith and Wesson
What is the value of my 1955 smith & wesson 45 target master revolver?
Be aware! Never fire ammunition in a weapon not chambered for it! Stick to the .45 colt ammo.
45
No
No such model number
100-1000 usd
The Standard Catalog of Smith and Wesson, 3rd edition, by Supica and Nahas.
1940-45
100-600 USD