A painting attributed to Leonardo da Vinci representing Mona Lisa is displayed during a preview presentation in a vault in Onex near Geneva, Wednesday, Sept. 26, 2012. The Mona Lisa Foundation, a non-profit organization based in Zurich, will present on Thursday, Sept. 27, a painting along with historical, comparative and scientific evidence, suggesting there have always been two portraits of the Mona Lisa by da Vinci, the "earlier version" made 10 years prior to the famous "Joconde" on display at The Louvre in Paris. (AP Photo /KEYSTONE/Laurent Gillieron)
GENEVA (AP) -- The mystery behind the most enigmatic smile in art - Leonardo da Vinci's "Mona Lisa" - just got a little more complicated.
In a coming-out party of sorts in Geneva, flashbulbs popped Thursday as the nonprofit Mona Lisa Foundation pulled back the curtain to present what it claims is a predecessor of the world's most famous portrait.
But even experts brought in by the foundation aren't sure just yet.
The claims are certain to rekindle questions about the famed painting in Paris' Louvre Museum and shake up accepted beliefs about the artwork.
The "Isleworth Mona Lisa" features a dark-haired young woman with her arms crossed against a distant backdrop. The foundation says it's no copy but an earlier version of the Louvre masterpiece.