My Father in Law passed away 6 years ago, and while cleaning out the house, found this in the rafters in the basement. Near as I can tell, it is a post WW2 model. It's complete except for the rear peep sight. Barrel is steel. Got 3 .22 cal. pellets from my son, and ran it over the chrony this morning. 8 pumps, first shot 271 fps. 2nd shot 285 fps, and the 3rd shot I waited 1 minute after pumping to fire, netting 206 fps. Any advise before tearing into it would be greatly appreciated. I own a machine shop, and have access to 2 plating companies, so I can go all out, or just hang it on the wall without touching it. Thanks.