The theft took place on the final day of an exhibition entitled "Unknown Treasures, " which had featured prints and etchings by Albrecht Duerer and Rembrandt vanRijn.
Mr vanRijn, 55, is the rogue Dutch art dealer who helped police set up an arts sting last week which recovered an ancient Peruvian head dress stolen nearly 20 years ago.
Rembrandt Harmenszoon vanRijn, who died in 1669 aged 63, is widely regarded as one of the most prolific self portraitists, thought to have painted 40-50 pictures of himself in oils and used himself as a model in 32 etchings and seven drawings.