You must call S&W to find out.
The Model 19 Combat Magnum is a .357 caliber revolver with adjustable sights. It was available with a 2 1/2, 4, or 6 inch barrel, blued or nickel plated. This model was discontinued in 1999.
The 1906 Smith and Wesson revolver, also known as the Smith & Wesson Model 1906, features a distinctive rounded frame and a 4-inch barrel. It typically has a blued steel finish, with a smooth wooden grip that provides a comfortable hold. The design includes a top-break mechanism for easy loading and unloading of cartridges, along with a front sight that is often a blade type. Overall, it embodies the classic revolver aesthetic of the early 20th century.
It is a Smith & Wesson, possibly a model 17 K-22 Masterpiece. They were made from 1947-1993 (in the blued version shown in your photo) and are extremely good target guns.
50-500 usd
Made in 1968.
Anything in the area of %300 would be fair. Much less than that in good condition is a steal.
Shipped @ 1967; 50-400 USD
1977-78
Model numbers did not come into use until @1957
probably 1961
You do not say if the revolver is a 4in,6in or 8 3/8 in barrel,and weather or not it is blued or nickel finish.I have seen these smith,s going for between 550-750 dollars on gun broker recently.I hpoe this answers your question.