I've wondered myself about the sling swivels which look a lot like something post G&H to me. I have also learned over the years not to say never, It always come back to bite me. The pad also looks a little later, the rest looks like it should, the 12th .400 Whelen after they started the number-caliber method of assigning numbers. This rifle belonged (belongs) to a friend of mine in Chicago. Of all the G&H rifles the .400 Whelen is one of the hardest to acquire. There was a super one on GunBroker but I have not checked to see if it's still there. The .400-Whelen block of numbers are 201-250.