Hi, I have a .38 S&W special and I need help identifying it. I'm not that familiar with firearms.This revolver belonged to my grandfather and may have even been his fathers. Grandfather was apart of the occupation forces of Japan if that helps. It's a 6 shooter with the serial number 188836(maybe 188856? hard to tell) stamped on the butt end and top part of the cylinder. Barrel length appears to be 4" long. I will provide pictures. I know the cylinder serial number is hard to make out but it says 188836. If you need more information about the gun I'd be happy to provide. Thanks.