The serial number is on the butt of the weapon. From that, you can determine when shipped by calling S&W or looking it up in the Standard Catalog of Smith and Wesson.
300-400 USD
Impossible to answer without the serial number. The serial number is on the butt.
The Model 19 was not made in stainless steel.
Look on frame inside the cylinder area to find the model number of a Smith and Wesson 357 mag snub 2 in stainless barrel
I would start my search at Smith and Wesson first.
The 41 Magnum is the Model 57 or 58. The Model 29 is a 44 Magnum.
Stainless steel.
100-425 USD
It was Smith & Wesson Model 29 with 8 3/8" barrel.
The S&W Model 57 chambered in .41 Magnum with a 6" barrel will range from about $400 to $2000 depending on condition and age.
A K frame, stainless steel revolver made between 1982 and 1986.
What model?