Speculations about Mona Lisa he had had no access to the actual painting, said that after "every laboratory test possible" in 2004 and 2009 that "no inscriptions, letters or numbers, were discovered during the tests." and that "The ageing of the painting on wood has caused a great number of cracks to appear in the paint, which have caused a number of shapes to appear that have often been subject to over-interpretation". Speculations about Mona Lisa The 16th-century portrait Mona Lisa, or "La Gioconda" ("La Joconde"), painted in oil on a poplar panel by Leonardo da Vinci, has been the subject of a considerable
Leonardo da Vinci d'Alger", which sold for $179.4 million in May 2015 at Christie's New York. The highest known sale price for any artwork was $300 million, for Willem de Kooning's "Interchange", sold privately in September 2015 by the David Geffen Foundation to hedge fund manager Kenneth C. Griffin. Footnotes Citations Leonardo da Vinci Leonardo di ser Piero da Vinci (; 15 April 14522 May 1519), more commonly Leonardo da Vinci or simply Leonardo, was an Italian polymath of the Renaissance whose areas of interest included invention, painting, sculpting, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, writing, history, and cartography.