Ohne Titel. 1977/1980.
Gouache, watercolor and color chalk.
Signed and dated lower right. Upper right upsode down barely legibly signed, dated and inscribed. Verso with inscription "N LXIII UL2". On laid paper by Canson (with watermark). 64.6 x 49.6 cm (25.4 x 19.5 in), the full sheet. [DB].

Accompanied by an expertise issued by Sigrid Melchior M.A., Berlin, from 15 April, 2015.