Chiming in; I would think this puppy is the real deal. I once saw a 16ga. FWE IN THE BOX at a Smokey Mtn. Gun Collectors show when my father was alive and President of that club. John Allen from Nashville had the gun, and if Iam not mistaken, wanted $1600 for it at that time; about 7-8 years ago.
You might be able to come up with some stipulations if you dropped the seller a line.