I have what appears to be a .32 Hand Ejector (Postwar) - Pre Model 30, serial number 568013. Looks like it's an improved I-frame with a coil mainspring, based on what I can tell from my 3d ed SCSW. Can anybody confirm that's what it is and any other information on it? It looks like it has a prewar barrel with the rounded front sight, but a postwar ejector rod. Thanks in advance.