Contact S&W by phone or go to their website. They have manuals for download.
Call Smith and Wesson and they will send you one. Go to their website and you can download one.
Contact S&W
You can request an owner's manual for free at the S&W website.
50-500 USD or so
"The S&W Revolver: A Shop Manual" Book by Jerry Kuhnhausen
Which model? The best thing to do it check the owners manual.
What is the value of my 1955 smith & wesson 45 target master revolver?
Standard Catalog of Smith and Wesson.
A fine revolver.
email the serial# to smith & Wesson and they will respond with the date
Follow the instructions in the owner's manual. You can request one from S&W on their web site.
@ 1943