I don't know if it's already been mentioned, but the Model 10 (then called the Hand Ejector Model) in .38 Special was first introduced as a black powder cartridge revolver. It was almost immediately, however, transitioned to a smokeless powder loading.
My Father-in-Law has one that has been re-blued and had replacement (S&W) grips. Very nice gun. I haven't seen that gun in so long that I'd forgotten. Somebody had put a rear sight on it too.
