Welcome to the S&W Forum, TwoGunTJ. I don't have my SCS&W close by so can't give you an exact date, but that is an early one with the all stainless sights. It looks like the ex-LEO guns that were abundant in the '80s and '90s but are rapidly climbing in value and demand today. If the inside of the right grip has the same serial number as the rest of the gun stamped in, even with the wear and tear, those grips add a little to the value. I'm going to guess that if that gun showed up here in Central VA, and if I am judging the finish condition correctly, the asking price would probably be at a minimum $550-600 and maybe quite a bit more from most dealers. Local markets vary considerably though, so don't take my guess-timate as being carved in stone.
Froggie