Photo, 1959 Inauguration of the Gelsenkirchen Opera Theater in the presence of Jean Tinguely and Yves Klein
Photo, 1959 International collaboration between artists and architects in the realisation of the new Gelsenkirchen Opera House
Photo, October - November 1960 Yves Klein in front of the work "Grande Anthropophagie bleue, Hommage à Tennessee Williams" (ANT 76)