[Runscott]

Edited (for future generations who accidentally find this thread the next time this item is auctioned).

The mystery is solved. It's not Anson, but in my opinion there was no dishonesty on the part of the seller or the descendant's family - an interesting story just changed over the years until it was more than it really was. This is based on research I did, as well as an enhanced view of the photo.