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
Mona Lisa replicas and reinterpretations represented in the original "Mona Lisa". Joos van Cleve, a Flemish artist active in the years following "Mona Lisa"'s creation, also painted a nude titled "Mona Vanna". Though the figure portrayed in van Cleve's painting bears no resemblance to Leonardo's "Mona Lisa", the artist was known to mimic themes and techniques of Leonardo da Vinci, in this case the positioning of the figure and the delicate brushwork reminiscent of Leonardo's sfumato. The artwork, dating to the mid-16th century, is in the collection of the National Gallery, Prague. By the 20th century, "Mona Lisa" had already been a victim of satirical