Thanks terrier. The seller of this also references that it's provenance is from UACC Registered Dealer RD#2 which, from the best I can determine, would be Bob Jones. I think the seller may be misrepresenting the facts on that. I understand Mr. Jones has a good reputation.
I did send an email to Mr. Jones and hope he responds to get to the bottom of this. I would dislike seeing anyone's name being used to sell a bogus signature.