You will need to call S&W. That sn does not match normal convention of J frames.
100-450 USD
Mid 1980's. sales@countrygunsmith.net
You will have to call S&W
Depending on condition, $150-$400. sales@countrygunsmith.net
1976/77
You will have to get it lettered by S&W to find out.
Impossible to answer without a serial number; 10-500 USD
Call S&W and they will tell you when it left the factory.
A fine revolver.
$250-$350 depending on condition
In 1950 was the only year that the .38 cal. Model 36-1 was produced. It has a 3" heavy barrel and is named as a Chiefs Special.
You can get a historical letter from S&W for 50 USD.