Boston, Institute of Contemporary Art, Multiplicity, April - June 1966, no. 12, n.p., illustrated (titled 69)
Paris, Galerie Stadler, Art Objective, April - May 1967, n.p.
San Marino, Palazzo dei congressi, Nuove tecniche d'immagine: Sesta biennale d'arte Repubblica di S. Marino, July - September 1967
Philadelphia, University of Pennsylvania, Institute of Contemporary Art; San Antonio, Marion Koogler McNay Art Institute; and Indianapolis, John Herron Art Institute, Robert Indiana, April - September 1968, no. 15, pp. 29, 48, illustrated
New York, Indiana Place, Robert Indiana, Summer 1971
Austin, University Art Museum, University of Texas at Austin; Norfolk, Chrysler Museum of Art; Indianapolis Museum of Art; Purchase, Neuberger Museum, State University of New York; and Indiana, Art Center of South Bend, Robert Indiana, September 1977 - July 1978, no. 21, p. 57
New York, Fisher Landau Center for Art, Painting and Sculpture: Selections from the Collection Curated by Bill Katz, May 2007 - January 2008
New York, Fisher Landau Center for Art, Five Decades of Passion Part Two: The Founding of the Center, 1989-1991, November 2009 - April 2010
West Palm Beach, Norton Museum of Art, A Remarkable Gathering: The Fisher Landau Family Collection, March - September 2022