Ohne Titel. 1981.
Collage.
Signed, dated and inscribed. 21 x 29.3 cm (8.2 x 11.5 in).
On occassion of the exhibition 'Otto Piene - Rauch- und Feuerbilder, Lichtplastiken' 14 June - 10 September, 1981 at Galerie Löhrl, Möchengladbach, Otto Piene made 20 collages of the invitation cards. Each of them is a unique piece and inscribed with a consecutive number. This collage is numbered '16'. [EH] .