Espaces Concertés. 1970. Acrylic on hard fibre board. Not in Henze. Signed and dated lower left. 75 x 60 cm (29,5 x 23,6 in). [JS].
According to the kind information from Dr. Wolfgang Henze, Wichtrach/Bern, the work has been included into the Francis Bott Archive under the number 1142 A and will be published in the addenda of the catalog raisonné.