Visually, it resembles a .38 S&W but the case dimensions are slightly different. The .38 Short Colt case is the parent to the .38 Long Colt and .38 Special.
This cartridge can be safely fired in revolvers chambered for .38 Special or .357 Magnum.
I think I'm going to cut down some 38 spl cases and load a few for my model 36 just to pass some time on these dark, cold, wet winter days.