lower right in graphite: Harry Callahan; all by later hands: upper left verso in graphite: D1 / L30 E7; lower right verso in graphite: #1
Mr. and Mrs. David C. Ruttenberg, Chicago, IL; gift to NGA, 2002.
- Harry Callahan, National Gallery of Art, Washington; Philadelphia Museum of Art; High Museum of Art, Atlanta; Museum of Contemporary Art, Chicago, 1996-1997.
- Harry Callahan: Color 1941-1980. Providence [Rhode Island], 1980: p. 15.
- Greenough 1996, p. 82.