A sculpture in daylight and cool white fluorescent light by Dan Flavin, titled three sets of tangented arcs in daylight and cool white (to Jenny and Ira Licht), dated 1969.

Dan Flavin 

three sets of tangented arcs in daylight and cool white (to Jenny and Ira Licht)

, 1969

Daylight and cool white fluorescent light

Room size: 9 ft. 6 in. x 24 ft. 8 in. x 37 ft. 3 in. (290 x 752 x 1135 cm)

Installation view, Art Basel Unlimited, Switzerland, 2010, 
© Stephen Flavin/Artists Rights Society (ARS), New York

A sculpture in daylight and cool white fluorescent light by Dan Flavin, titled three sets of tangented arcs in daylight and cool white (to Jenny and Ira Licht), dated 1969.