Hi,
Michele, funny, but it was a very serious documentary, 45 min. It was so interesting that I was angry at myself for not recording this piece.
Michael, they showed other works of him with overlayering (the other famous one: Madonna in the grotto) and the relative long nose and eyebrows and few other things, there are always some likeness. They said the artists (Leo too)
makes (more or less) such little jokes.
Or Italian models are simply all the same.
Other fact is (cloth), the negative from it is a very detailed picture, with beard and hairs. Things that you never see with naked eye on the cloth. Camera obscura explains the height difference very simply: tiny closer to the hole (today: lens) and you have a 'projection error'. What sure not so simply to discover for Leonardo as for us today. But if it is true, hey, he made the first multiple-exposed photo!
If I can record this docu (perhaps a replay), I'll digitalize a few interesting pictures.
Leslie