Without a factory letter to document its provenance, I am highly skeptical of rare cataloged and any non-cataloged configuration firearm. There are plenty of counterfeit pre-'64 Winchesters out there waiting for a gullible buyer who has money and wants to believe the story. I believe that reputable sellers who handle rare guns should care enough to document provenance before offering them for sale. When supposedly knowledgeable gun people are offering rare guns without supporting documentation, I always ask myself why and what are they hiding.
