Piene, Otto Laasphe, Westphalia 1928 – lives in Cambridge, Massachusetts „Blackbird“ 1989 Mischtechnik auf Nessel 80 x 100 cm 31 1/2 x 39 3/8 in. Otto Piene Laasphe, Westphalia 1928 – lives in Cambridge, Massachusetts „Blackbird“ 1989 Mixed media on nettle On the reverse signed, dated and titled with green felt-tip pen: Piene [in a circle] 89 Blackbird“ 80 x 100 cm 31 1/2 x 39 3/8 in. Private collection, North Rhine-Westphalia (acquired directly from the artist)