smith and Wesson (smith & Wesson) and Sig-Sauer
The sn is on the butt and does not have as many numbers as you listed.
I purchased a used Smith & Wesson 4013 for $350.00
Smith and Wesson 500
Model numbers were not used before @ 1957.
100-225 USD
The Model 57/657
Nothing.
No
N
1973
100-225 USD