© Artists Rights Society (ARS), New York/VG Bild-Kunst, Bonn Schwefelpostkarte (Sulphur Postcard) Joseph Beuys Accession Date: 05/01/06 Accession Number: F-BEUYS-106.510 1984 galvanized iron plate, one side covered with sulphur, the other printed 4 1/8 x 5 7/8 x 1/8 in. (10.48 x 14.92 x 0.32 cm)