Impossible to answer without a detailed description of all features, condition, finish, box, papers, accessories, etc..
Impossible to answer without a serial number.
Depends on exactly WHICH J Frame. A Model 36 (Chief's Special) in blue, 2 " bbl, is going for about $300 in good condition. Other models, other metals, different value.
50-300 USD or so
J frame
Yes.
It is a J frame.
The "J" frame is the Smith & Wesson small frame revolver such as the model 36 .38 special. The smallest frame, as in the model 36 Chief's Special.
J frame, usually in 38 special
The most common frame size for the .38 special in Smith and Wessons line up of revolvers were the J frame.Some were also made on the K frame,and the L frame.
Charter Undercover .38 Special is equivalwent to the S&W J frame size.
Does not follow J frame sn convention. You will have to call S&W to find out.
Airweight was the name S & W gave to their early aluminum alloy frame handguns. I believe that they were all built on their "J" frame, hence the J prefix. If your handgun has an exposed hammer it is a Model 37 Chief Special Airweight, if the hammer is covered by a shroud it is a Model 38 Bodyguard Airweight. I believe that the model # should be visable by opening the the cylinder and looking at the point where the cylinder yoke indexes when the when closed.