Then only way to know for sure is to get it lettered.
Yes.
3 or 4 inch
$750.00
Model 37
Your smith and Wesson model 686 is valued at 250-425 dollars depending on condition.
6500
It was a Smith & Wesson Model 29 with a 8 3/8 inch barrel.
the value of a smith Wesson 8 inch barrel model 27-2
100-400 USD
100-300 USD
100-300 USD
1980