Portfolio. Kölner Kunstmarkt 1970. 1970 Original cardboard box with 27 prints by various artists on various paper types and a catalogue. Box: 46,5 × 33 cm (18 ¼ × 13 in.). Each signed and monogrammed, partially dated and titled. Each one of 250 numbered copies. With catalogue and list of artists, in original box. Cologne, Verein progressiver deutscher Kunsthändler e.V., 1970. [3369] Provenance: Private Collection, Rhineland