Self-portrait at the age of 20, Leendert van der Cooghen, 24 November 1651

Date: 24 November 1651. Dimensions: height: 312 mm (12.28 in); width: 235 mm (9.25 in). Medium: black chalk, charcoal, paper, pen. Collection: Hamburger Kunsthalle. Leendert van Cooghen - Self-portrait at the age of 20