A freelance photographer based in Milan, Dave Yoder has an ambitious fund-raising goal for an equally ambitious project: raising over 250,000 U.S. dollars to build a super high-tech camera that can ‘see' Leonardo da Vinci's fabled painting The Battle of Anghiari in Florence's Palazzo Vecchio. Depicting the famous battle, in its time the painting was heralded as the greatest masterwork by the era's greatest master. Historical documents suggest it was visible for some 40 years, a period in which two generations of artists flocked to Florence to study the immense, unfinished mural said to be the ‘school of the world.' Many of these artists were so taken with its expressive force that they copied it. In 1563, it was allegedly covered up when another Renaissance master, Giorgio Vasari, produced (and completed) the larger mural that still decorates one wall of Palazzo Vecchio's Salone dei Cinquecento. Some art historians posit that the words Cerca Trova in Vasari's painting were left as a clue to the place where he sealed in Leonardo's work. Researchers from around the world have argued the painting's existence and, led by Dr. Maurizio Seracini (see an interview with Dr. Seracini in TF 43), have followed the decades-long search to find the masterpiece. Yoder may have finally found a way to prove its existence, but he needs the world's help. Below he tells TF why.