Its all original with a solid rib barrel. I would say the bluing is 95-98%. I belive it was manufactured in 54 or 55. I don't have the serial number handy at the moment.
I'll be wrap up one of the pics and send it to ya. which one would you like I'm not sure if I'm selling it or not. I want to get a semi auto winchester sx 3 but I have a trade offer for a sx2 ducks unlimited edition that i'm considering.