More information: Raúl Porto, "Sem título"
"Prêmio Leirner de Arte Contemporânea," Galeria de Arte das Folhas, São Paulo, Brasil, November 1961.
"Arte construtiva no Brasil: Coleção Adolpho Leirner," Museum of Modern Art, São Paulo, Brasil; October - December, 1998 cat. # 54; Museum of Modern Art, Rio de Janeiro, Brazil; January - March, 1999.
"Arte de vanguarda - da província a Santo André," Centro Cívico de Santo André, Santo André, Brasil, August 2000.
"Dimensions of Constructive Art in Brazil: The Adolpho Leirner Collection," The Museum of Fine Arts, Houston, Upper Brown Pavilion, May 20-September 23, 2007.
Estate of the artist, São Paolo, Brazil;
Purchased by Adolpho Leirner, São Paolo, Brazil, from the artist, March 22, 1998;
Purchased by Museum of Fine Arts, Houston, Houston, Texas, USA, from Adolpho Leirner, 2005