electrical components, painted wood, nails, glass, optical lenses, stones, pencils, ink and paint

signed, titled, numbered, inscribed and dated '239-B "220 Revoltage" m. bauermeister 1971 collaboration for electronics David Johnson' on the reverse

34.9 x 34.8 x 21.8 cm (13 3/4 x 13 3/4 x 8 5/8 in.)

Executed in 1971.