No way to real prove anything at all without some factory paper to maybe back it up, but, my interest in these early grips makes me wonder if your set might be an early attempt at what we now call cokes. Nothing but my opinion but the inside of your grips are Roper, the outside has checkering very much like the know factory coke pattern, seems possible to me that Albert took a set of Roper inlet grips and added a S&W style checkering pattern plus medallions. Concerning the 1950 Oversize stocks, I knew they had factory washers, I was commenting on the outside shape only, and that shape is pure Roper. My point, if I have one, is that Albert learned to make "oversize" stocks from his father Mathias, Albert later worked for S&W in the stock making department, he most likely was there when The "oversize" stocks were first created. Does not seem like a stretch that a number of early sets were made in working the whole thing out pre production, quite possibly by him. Your set has a hand cut border around the checkering using a U shaped chisel, the 1950 oversize set has a hand cut border using a V chisel, I've observed a couple others with hand cut borders, I think these are all early probably pre production grips/stocks. Any of it really mean much, maybe not, but I think its pretty cool.
