This portrait of a woman by Pablo Picasso, from 1939, is among a number of works stolen from the National Gallery in Athens, Greece, on Monday 9 January 2012.
The work was donated to the Greek people by Picasso in 1949, in recognition of their resistance against the Nazi occupation during World War II.
"Landscape with a Mill" (1905), by Dutch artist Piet Mondrian, was also taken in the raid. The thief tried to make off with another Mondrian work, but dropped it while trying to make his escape.
The thief, or thieves, also stole a pen-and-ink sketch, "San Diego de Alcala in ecstasy," by Renaissance artist Guglielmo Caccia, who was known as il Moncalvo.