(1914 Aachen - 2017 Niederbreitbach) "Kolphoo I". Original title color lithograph/velin, 1999. Signed, numbered H.C. 36/40, titled and dated; dry stamp of the printer Manfred Hügelow, Frankfurt a. M.; image 33.1 cm x 25.3 cm. Sheet 45.2 cm x 35 cm. Lithograph in colours on woven paper, 1999. Hand-signed, numbered H.C. 36/40, inscribed with title and dated. Printed by Manfred Hügelow, Frankfurt a. M. (blind stamp).