"The angles of Baertling. Open form infinite space. From cinétism to open form 1949-1968"
Portfolio with 35 silkscreens in colours, 1968, each signed in ball point pen and numbered 254/300. Printed by Selecta Ateljén Björn Hemberg, Stockholm, published by Rose Fried Gallery, New York/Galerie Denise René, Paris/Galerie Aronowitsch, Stockholm. Varying size (19 x 25 - 39 x 19 cm). Loose in cloth covered portfolio-case.