Eduardo de Valfierno "Mona Lisa". The forgeries were then shipped to around the world, readying them for the buyers he had lined up. Valfierno knew once the "Mona Lisa" was stolen it would be harder to smuggle copies past customs. After the heist the copies were delivered to their buyers, each thinking they had the original which had been stolen for them. Because Valfierno wanted to sell forgeries, he only needed the original "Mona Lisa" to disappear and never contacted Peruggia again after the crime. Eventually Peruggia was caught trying to sell the painting. It was returned to the Louvre in 1913. Peruggia
Accélérateur Grand Louvre d'analyse élémentaire Accélérateur Grand Louvre d'analyse élémentaire Accélérateur Grand Louvre d'analyse élémentaire (AGLAE) is a particle accelerator housed by the Center for Research and Restoration of Museums of France in the Louvre museum in Paris, France. AGLAE is a Pelletron 2MeV electrostatic accelerator built by an American company, the National Electrostatics Corporation, and has two sources: AGLAE was installed starting in 1987 and inaugurated in 1989. AGLAE is sited some 15m below the glass pyramid at the Louvre. AGLAE generates protons and Alpha particles that are emitted outside the accelerator itself, enabling items of virtually any size or type to be examined.