Italian art expert Mauricio Seracini says he is on the verge of discovering a long-lost Leonardo da Vinci masterpiece 'The Battle of Anghiari' hidden in a secret cavity behind a palace wall in Florence, Italy. October 30, 2009. Seracini in the Palazzo VecchioÕs grand ceremonial chamber, the Hall of 500, in front of Vasari's fresco 'The Battle of Marciano'. Leonardo's 'The Battle of Anghiari' should be hidden behind this fresco. Photo by Eric Vandeville/ABACAPRESS.COM