HEYBOER -- SANDBERG, W., C. RICHARTZ & A. HEYBOER. Anton Heyboer. (Köln, Verlag Galerie Der Spiegel, 1960). (17) lvs. (incl. 1 blank). W. 1 fold. etching (500 x 370 mm) in brown ink finished by hand and 1 etching in brown ink (250 x 370 mm) by Heyboer, loose as issued, and 70 b&w illustr. Fol. Or. illustr. brds. (Geh Durch Den Spiegel, Folge 22). In the best possible condition. Printed in 200 copies. -- Added: A. HEYBOER. Oeuvre-Katalog. Köln, Verlag Galerie Der Spiegel, n.d. (c. 1961?). (74) pp. Displaying i.a. 62 etchings by Heyboer. Sm-4°. Owrps. -- (2).