But...it's autographed! Right there, on the back side, it says, "Leo & Mona. Please don't post this on the internet."
Well, I think that puts it beyond any reasonable doubt.
My researches in art history tell me that Leonardo was actually the illegitimate son of a Scottish crofter, and his artist's model was a Native American lady he met during a drug-fuelled weekend in Amsterdam. It all makes sense.
@graeme-ogg, yes! It all comes together now. They probably had that photo taken by one of those street people who offer to take your picture and then want to charge you $20 for doing it.
Gee, Terry, I need to find one of those. I just HATE cheap reprints. First Editions for me every time. And I bet this version has nice colour plates and fold-out full-colour maps as well. You are a lucky man. (Kind of a shame you are a Buddhist, but still, it's a lovely thing to have.)