This undated handout picture released by the National Geographic on March 12, 2012 shows National Geographic Fellow Maurizio Seracini (foreground) and his team viewing footage captured by the endoscope behind the Vasari wall at Palazzo Vecchio in Florence. Art sleuths taking part in a partly sponsored research by National Geographic and which has been controversial said on March 12, 2012 they believe they have found traces of a Leonardo Da Vinci masterpiece on a hidden wall of Palazzo Vecchio that has not been seen in over four centuries. AFP PHOTO / NATIONAL GEOGRAPHIC / DAVE YODER/HO
RESTRICTED TO EDITORIAL USE – MANDATORY CREDIT “AFP PHOTO / NATIONAL GEOGRAPHIC / DAVE YODER/HO” – NO MARKETING NO ADVERTISING CAMPAIGNS – DISTRIBUTED AS A SERVICE TO CLIENTS – NO ARCHIVE – ONE TIME USE ONLY FOR ILLUSTRATING THE STORY On “The Battle of Anghiari” PAINTING BY LEONARDO – NO SALES (Photo credit should read DAVE YODER/AFP/Getty Images)