Welcome aboard. It looks like an older model 80 - 3" tapered heavy barrel. However since it is Spesco/Taurus, I am not sure we can figure out its age. 35C157 is what the serial looks like, doesn't match my reference info for old Taurus revolvers. Hopefully one of our revolver experts will weigh in. While you are here, go to our member introduction area and read our forum rules and set up your profile.