Labyrismen. 1962. The Portfolio comprising 11 lithographs, of which ten in colors, as well as 10 text sheets and cover sheet, imprint insert in original case, there typographically inscribed. Imprint signed and numbered. One sheet signed, 10 signed in stone. One of 73 copies. On wove paper by Hahnemühle (without watermark), texts on Ingres laid paper by Van Gelder Zonen (some with watermark). Each 37,8 x 47,8 cm (14,8 x 18,8 in), size of sheet. Printed by P. Clement, Amsterdam. Published by artist in cooperation with Galerie Krikhaar, Amsterdam. Lithograph with text by C. Caspari. Loose sheets in original canvas case. The complete set. [KP].