76/3379 Constant (1920-2005). Blauwe kubus. Etching and aquatint, printed in black and blue, 1971, 18,5x24,5 cm. (image size), 56x38 cm. (leaf size), signed and "13/20" in pencil.

- Trifle yellowed; pinholes in left and right blank margin. = Dagen/ Van der Horst 121.