1972
Medium: Silkscreen with handwritten text
Sheet size: 75 3/8 × 39 5/8 inches
Frame size: 78 1/4 x 42 1/8 inches
Publisher: Edition Staeck, Heidelberg and Edizioni Lucio Amelio, Naples
Edition size: 180, plus proofs
Catalogue Raisonné: Schellmann 47
Signed, titled, numbered, and stamped Hauptstrom (Mainstream)