I have no idea what they are actually worth, but I just picked a model 469 up from a dealer for 299$.
$400 to $469
1983-1988
2256
50-450
You need to contact S&W.
One has been.
100-400 or so
No sn provided.
50-400 usd
Best advice is to ask a gunsmith.
S&W's website has manuals for download or request one for free.
Yes