I think that is not Pancho. Pancho is where the X in the picture is.
Meanwhile, a real find would be the head of Pancho Villa sa it was stolen from his corpse several years later.
I wonder if Warren Oates did it!
Years ago, I bought what I thought was the skull of Pancho from a street vendor in Tijuana.
Alas, he was out the next day selling another skull, also saying it was Poncho's.
When I confronted him, he said he was selling Poncho's skull from when Poncho was a little boy. (I bought it too, just to be on the safe side)