In August 1911, handyman Vincenzo Peruggia pulled off the art heist of the century by walking out of the Louvre with Da Vinci's Mona Lisa hidden under his smock. For over two years, the masterpiece sat under a trunk in his cramped Paris apartment while police frantically searched for clues. Believing himself an Italian patriot rescuing national heritage, Peruggia finally decided to return the painting to Italy in late 1913.
Using the alias Leonardo Vincenzo, he drafted a postcard to Alfredo Geri, a prominent Florentine art dealer, offering to sell the masterpiece back to its homeland. However, the communication hit an extraordinary snag in the Florentine postal system. Due to an obscure municipal postal routing policy regarding unfranked foreign post and suspicious pseudonyms, the card was intercepted by a vigilant postal clerk in Florence who flagged the letter for peculiar phrasing and lack of proper postage.
Rather than discarding it as junk mail or crank correspondence, the clerk forwarded the flagged postcard to local authorities. This postal anomaly created a silent alert days before Peruggia even arrived in Tuscany. Unaware his secret message had been intercepted and logged by Florentine authorities, Peruggia casually checked into the Hotel Tripoli-Italia carrying the priceless canvas in a wooden trunk.
When he met dealer Geri and Uffizi Gallery director Giovanni Poggi, the trap was already sprung. The bizarre interception of a simple postcard turned what Peruggia hoped would be a lucrative patriotic transaction into one of the swiftest artistic stings in history.