Faux-na Lisa?

Did Leonardo da Vinci painter more than one Mona Lisa? That is the question being posed by art critics and auction houses. This Friday in Geneva a possible second Mona Lisa will be unveiled. Known as the Isleworth Mona Lisa the painting has been in West London since 1914. Hugh Blaker a painter and art critic bought the larger and older version of the painting at an art auction in Somerset. The painting was sold in 1962 to Henry F. Pulitzer an American art collector. Upon his death it was willed to Pulitzer's girl friend and at her death it was sold to a Swiss consortium and kept in a Swiss bank vault.
There is much debate over the authenticity of the Isleworth Mona. Many really believe that it is a true earlier version. Lisa herself looks younger and has a happier smile. The background is slightly different as well. Pulitzer spent much of his later life trying to prove it real. Now the Swiss consortium is trying to get the painting acknowledged as a real Mona.
On Friday after the unveiling the fight will begin and who doesn't love a fight between art historians?