The Rijksmuseum | Documentation “The Rembrandt Database, Object information, circle ofomgeving vanRembrandt, Bust of a laughing man, c. 1630, Rijksmuseum, Amsterdam, inv. no. SK-A-3934, http://www.rembrandtdatabase.org/Rembrandt/painting/2948/bust-of-a-laughing-man, accessed 2016 February 01”