S&W will send you a manual for free or you can download one at their website.
Go to the S&W website and you can request an owner's manual for free.
50-500 uSD
Go to S&W's website and download a manual.
You will have to call S&W
No such model number ever made by S&W. They did make a 6906. Value for a 6906 would be 100-375 USD
Recommend you ask a gunsmith for help.
Best left to a qualified gunsmith
Best left to a gunmsith
1999
Best left to a gunsmith. S&W will send you a owner's manual for free.
50-475 usd
You can get an owner's manual for free at the S&W website.