One of the Twelve Identical Units

1989–1990

panel/cable assembly: ceiling height x 9 x 3 inches (ceiling ht x 22.9 x 7.6 cms) each panel: 6 x 9 x 3 inches (15.2 x 22.9 x 7.6 cms) each case: 18 x 18 x 5-1/8 inches (45.8 x 45.8 x 13 cms) each