This gun is one of the common old 32 S&W break top 5 shots that is nickel plated. My book suffered water damage some years ago and that has left me in the dark. The serial # starts with a G and it is a coil spring hammer. I'm thinking it's from around 1916 to 1918. If someone could verify I would greatly appreciate it. Info on where to obtain a replacement book that contains such info wouldn't make me mad either.