One London art dealer now says it could be worth more than $150 million. If experts are correct, it will be the first major work by Leonardo to be identified in 100 years.
According to the Associated Press:
Biro said the print of an index or middle finger was found on the artwork and that it matched a fingerprint from Leonardo's "St. Jerome" in the Vatican. Biro examined multispectral images of the drawing taken by the Luminere Technology laboratory in Paris. The lab used a special digital scanner to show successive layers of the work.Technical, stylistic and material composition evidence had experts believing they had found a Leonardo as early as last year. The discovery of the fingerprint now has them convinced.
"Leonardo used his hands liberally and frequently as part of his painting technique. His fingerprints are found on many of his works," Biro said. "I was able to make use of multispectral images to make a little smudge a very readable fingerprint."
"I would say it is priceless. There aren't that many Leonardos in existence," Biro said.
Click here for the Associated Press article.
Photo shows location of the fingerprint on the canvas.