89. P1430 Per Biorn in ground-effects machine he designed and built for Lucinda Childs’ piece for 9 Evenings. Technical rehearsal at Berkeley School, Berkeley Heights, NJ, Summer 1966, 1966. Photo: Frances Breer. 8 x 10” gelatin silver print Photograph Collection. Robert Rauschenberg Foundation Archives, New York [No copyright statement present on documentation list]