I am new here.... and I am trying to get some idea of the value of my weapon. It is a SW Airweight 38 Spl CTG, model 37 stamped inside along with the numbers B18 and 92634 and the serial is J 6423** on the butt. It is a blue Snub, with pearl looking grips. I have no idea how old it is or anything else about the gun. Any help or info would be appreiciated...