If it has a full stock, you are way ahead of my Lancaster Armory Co P53, postwar shotgun conversion. ...that was sanded with coarse grit and browned.... And the lock gutted.Yes. I brought it to an antique dealer who I buy some of my guns from. He confirmed what you just said. The pics dont show it but the rifle is in real bad shape and missing pieces. Monetary value is at wall hanger status. There is the historic value. I plan to give it an overhaul and hang it on the wall. Been a real learning experience. thanks for your help. Many have put in a lot of effort