center reverse: "SWIM" / Jack Bush - Toronto / July 1967 / Acrylic Polymer W.B.
Vincent Melzac [1914-1989], Arlington, Virginia; gift December 1970 to the Corcoran Gallery of Art, Washington; acquired 2015 by the National Gallery of Art.
- Corcoran Gallery of Art. The Vincent Melzac Collection: Modernist American Art Featuring New York Abstract Expressionism and Washington Color Painting. Washington, 1971: no. 20, repro. 58.