M.C. Escher (Dutch, 1898-1972): Rippled Surface, March 1950. Linocut in black and grey-brown on Japan paper, 33.6 x 40.1 cm; image: 26 x 32 cm. National Gallery of Canada, Ottawa, Ontario, Canada. © Cordon Art B.V. - Baarn - Netherlands. Image: © 2013 The National Gallery of Canada. © This artwork may be protected by copyright. It is posted on the site in accordance with fair use principles.