lower right in graphite: Harry Callahan; all by later hands: upper left verso in graphite: D6 / L16; upper left verso in orange pencil: 19; lower right verso in graphite: #6
Mr. and Mrs. David C. Ruttenberg, Chicago, IL; gift to NGA, 2002.
- Tow, Robert and Ricker Winsor, eds. Harry Callahan: Color 1941-1980. Providence, Rhode Island, 1980, pl.16.