Der Spiegel
Der Spiegel has published 25 edition lots by 13 artists offered at auction, 2001–2026. Artists include Ernst Wilhelm Nay, Broodthaers, Hap Grieshaber, Joseph Beuys, Enrico Castellani, Georg Meistermann, GRIESHABER, HAP (EIGTL. GRIESHABER, HELMUT ANDREAS PAUL) and Günter Fruhtrunk.