You can request a manual for free from S&W on their web site.
1972
100-400 USD
100-435 USD
The value of a SW 357 model 19-4 with a nickel finish can vary depending on its condition, but generally, it may fetch anywhere from $500 to $800 in the current market. Factors like rarity, demand, and any additional features can also influence its value. It's best to consult with a firearms expert or appraiser for a more accurate valuation.
1976
1979
300-600
300-375 USD
NO, NO, NO, NO, NO, NO, NO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! DO NOT EVEN TRY TO DO THIS!!!!!!!!!!!!!!
10-150 USD depending on what "good" turns out to be when examined.
100-400 USD. The model 64 is stainless steel.
Call S&W and they will tell you when it left the factory.