the clay molds of a statue of a horse da Vinci was working on when he was living in Milan ; and a mural called `` The Battle of Anghiari , '' which a forensic expert named Maurizio Seracini believes is hidden behind a Vasari fresco in Florence 's Palazzo Vecchio . Recent disocvery of lost Leonardo da Vinci painting prompts speculation . True identity of `` Salvator Mundi '' lay dormant for years until research confirmed it was a Leonardo . Comment: Once authenticated , paintings leap in value by millions of dollars .
Recent disocvery of lost Leonardo da Vinci painting prompts speculation . True identity of `` Salvator Mundi '' lay dormant for years until research confirmed it was a Leonardo . Comment: Once authenticated , paintings leap in value by millions of dollars .