Bond of Union, April 1956
lithograph on wove paper
39.9 x 43.7 cm; stone: 25.7 x 33.9 cm
Gift of George Escher, Mahone Bay, Nova Scotia, 1988
National Gallery of Canada (no. 30174)
© Cordon Art B.V. - Baarn - Netherlands. Used by Permission. All rights reserved.
Escher wrote, "Two spirals merge and portray, on the left, the head of a woman and, on the right, that of a man. As an endless band, their foreheads intertwined, they form a double unity. The suggestion of space is magnified by spheres which float in front of, within and behind the hollow images".
"M. C. Escher, the Graphic Work" (Cologne: Taschen, 2001).