You can request an owner's manual for free at S&W's website
You can get a owner's manual at the S&W web site.
You can get a manual for free on the S&W web site.
This was an experimental model not sold on the commercial market. If you have one, you need to get it lettered by S&W and find a good gunsmith to clean it.
No such model number as 392. If you mean a S&W 39-2, @ 1980. Chrome is not a factory finish. If it is Nickel, value between 50-450 USD.
You can get an owner's manual for free at the S&W website
You can request a manual for free from S&W on their web site.
You can request a owner's manual for fee at the S&W web site.
Recommend you ask a gunsmith for help or ask S&W for a manual.
There is no S&W Model 4T942
There is no S&W Model 46133
No such model number in the S&W line.
You will have to call S&W