I know this is supposed to be about knives rather than provenance, but I can have a knife of granddaddy's and know from stories, and write down those stories, or even have granddaddy write down those stories, and it might be I lied or he lied. I could even have photos of him with a similar knife, and for all we know, he borrowed a friend's knife for photos and then liked it so much that he bought one like it....it is all about what buyer believes, wants to be true, and is willing to pay for....still very subjective, and only changed by degrees as evidence mounts.

Back to the nice old knife, clearly and simply a difference of opinion on what that bar height might be, and it keeps sidetracking a really interesting thread.