Recommend you seek the services of a gunsmith.
If you don't have a manual, you will need a good gunsmith
Ask a gunsmith for help.
You need to find a firearms instructor.
You need the services of a firearms instructor or a good gunsmith.
You can download or request one for free at S&W's website.
Contact S&W for an owners manual. Too long to reproduce here.
A Smith and Wesson 459 (or 5904) 9mm in mint condition and deactivated is worth around £400 currently
50-500 usd
50-500 usd
In perfect shape...about $1,000.00
50-425 usd
25-33 yearws old