© Artists Rights Society (ARS), New York/VG Bild-Kunst, Bonn Noiseless Blackboard Eraser Joseph Beuys Accession Date: 05/01/06 Accession Number: F-BEUYS-106.101 1974 felt blackboard eraser, stamped 2 x 5 1/8 x 1 in. (5.08 x 13.02 x 2.54 cm)