Found this pistol about 25 years ago in an old family bus. My family owned the first coach line in Marietta, Ga. circa 1940. It was in one of the driver compartments. Just recently rediscovered this gem along with a few rifles and another pistol(not S&W and not found in the bus). I do know that this is an Otis A. Smith pocket revolver, but thats about all I know. After many google searches I found that the serial number can be found on the butt of the stock. The only number I can see there is a "2", and it is very faint. I know it's almost impossible to make out on the photo provided however it's unfortunately the best I can do. Any help identifying and any info on this will be much obliged!