OK. All opinions welcome and wanted. I bit on this from Gunbroker a couple of weeks back and it came in today. My initial was that the metal was indeed a 1928 NRA sporter. A second look told me that it was probably an RIA receiver. I categorized the stock as a replacement, and the Winchester butt plate as too good to be true, at the least it was a reblue. But for the price, I figured I couldn't do better, even with a replacement stock. Pics are at the link below. Additional info: muzzle of 1.5 and a throat at 3.
http://s429.photobucket.com/user/danohudson/library/