When a portrait of a mysterious young woman with an enigmatic smile came up at a Christie's auction in 1998, it was attributed to the German School, early 19th century, and sold for $21,850. Now some are saying - and others disputing - that it's a previously unknown drawing by Leonardo da Vinci. The difference would run into quite a few million dollars.
complete article by ELISABETTA POVOLEDO
Published: August 22, 2008
*actual New York Times blurb headline