Natural History Part I, Mushrooms (No. I). 1974. Lithograph in colors with heliotype, photo chrome print and collage with colro chalks. Bastian 42. Monogrammed and numbered as well as with the embossed Roman sheet number and the copyright note. From an edition of 98 copies. On wove paper by Rives (without watermark). 76.1 x 56 cm (29.9 x 22 in) , size of sheet. Printed by Matthieu Studio, Zürich-Dielsdorf (with blindstamp). Published by Heiner Bastian of Propyläen Verlag, Berlin. [SK].