Constant in front of Ambiance de Jeu, circa 1959

Constant in front of his work Compositie met 158 blokjes at his studio at the Henri Polaklaan in Amsterdam, circa 1959.

Constant behind Eivormige constructie [II], in his studio at Henri Polaklaan in Amsterdam. 

ca 1959

NB: We do not have a version fit for print of this image.

Constant in his studio in the Henri Polaklaan in Amsterdam, 1959, in front of Ambiance de départ (1959) and two Nébulose Mécaniques.

Constant in his studio at the Henri Polaklaan 25, Amsterdam, with his constructions La Fleur mécanique, Lijn zonder einde and Construction dans un volume, 1959.

Constant in zijn atelier Henri Polaklaan, Amsterdam, circa 1959.

Constant standing in his studio on the Henri Polaklaan 25 in Amsterdam, 1959

NB: Not available in high res!

Constant working in his studio on the Henri Polaklaan in Amsterdam, 1959

Constant working on Ovoid Construction, circa 1959

Fête de Situationiste at Otto Van De Loo in Munich during the conference there.
Fltr lying in front: Guy Débord, the wife of Otto Van De Loo and Constant (en profile).