Record matrix (nickel-plated copper) with die-cut hole, felt pads stamped with brown paint, contained in original cardboard box.

1973

37.5 x 37.5 x 4.5 cm (14 3/4 x 14 3/4 x 1 3/4 in.)

Signed and numbered 54/77 in pencil on the label affixed to the front of the box (there were also 7 artist’s proofs in Roman numerals), published by Edition Schellmann, Munich.