Maurits Cornelis Escher, ‘Waterfall (B./K./L./W 439)’, 1961, Sotheby's

A proof aside from the numbered editions, on Van Gelder Zonen cream wove paper, framed.

image: 380 by 300 mm 15 by 11 3/4 in
sheet: 546 by 454 mm 21 1/2 by 17 7/8 in

About Maurits Cornelis Escher