The year is a rough estimate. Constant playing the guitar in his studio at the Henri Polaklaan 25 Amsterdam amidst of constructions and models. 

Constant playing guitar in his studio, ca 1962.

Constant with parrot at his studio surrounded by Infinite Line and Nébulose Mécanique, 1962.

ca 1962

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

Constant and Simon Vinkenoog sitting behind Big yellow sector, 1962.

NB: Not available in high res!

Simon Vinkenoog and Constant, 1962

NB: Not available in high res! Contact the Bram Wisman estate for a high resolution image.

TV recording with Simon Vinkenoog in 1962.

TV recordings with Simon Vinkenoog in 1962.

Wedding photo of Constant and his third wife, Nel Kerkhoven, 1961.

NB: Not available in high res!

Constant is clapping his hands and Co Melkert is playing the guitar.

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