So My grandpa had a pretty sweet set up in his basement, and on the wall of that basement was this shotgun, it is rusted to all hell and not functional I'm sure. I am wondering if anyone has some insight on when it was made and how or if I could possibly make it pretty again, or if i should just leave it as is and enjoy its rusty elegance. No sign of a date or serial number that I can see under the rust. All I can read is American Gun New York.