A friend at work has a Smith and Wesson 44mag 6" nickel. Where the model should be, under the assembly number, is stamped 0. He is offering to sell it to me and wants me to tell him how much it is worth, but I'm stumped. He has shown me a picture of the model number, and I had to look again to make sure it was in the right place, which is was. I have not seen the revolver.