Mona Lisa had closed. Peruggia was an Italian patriot who believed Leonardo's painting should have been returned for display in an Italian museum. Peruggia may have been motivated by an associate whose copies of the original would significantly rise in value after the painting's theft. A later account suggested Eduardo de Valfierno had been the mastermind of the theft and had commissioned forger Yves Chaudron to create six copies of the painting to sell in the U.S. while the location of the original was unclear. However, the original painting remained in Europe. After having kept the "Mona Lisa" in his apartment for
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.