Standard catalog of Smith and Wesson by supica and nahas
By the features.
Look on frame inside the cylinder area to find the model number of a Smith and Wesson 357 mag snub 2 in stainless barrel
The Smith and Wesson 357 model 686-4 is valued somewhere between $450.00 to $625.00, depending on the condition.
357 Magnum
You will have to call S&W to find out.
the 357 smith & Wesson 28-3 was introduced in 1982 Made from 1982-1986
50-550 usd
Check the butt and crane area of the frame.
Blue Book of Gun Values
All Smith and Wesson model 686 revolvers were made as double action handguns by Smith and Wesson.
N frame 357 Magnum
About $450.