signed by artist, lower right in graphite: Harry Callahan; on verso, by later hand, upper center in graphite: SB15
Callahan Family; gift to NGA, 2011.
- Harry Callahan, National Gallery of Art, Washington; Philadelphia Museum of Art; High Museum of Art, Atlanta; Museum of Contemporary Art, Chicago, 1996-1997.
- October 2, 2011–March 4, 2012 Callahan at 100, NGA
- Greenough 1996, p. 8.