lower left in graphite: (copyright) '37; lower center in graphite: Slush Banks; lower right in graphite: Blanche Grambs; lower right verso stamped in black ink: FEDERAL ART PROJECT / NYC / WPA
(Mary Ryan Gallery, New York); Jacob Kainen, Washington, D.C., purchased May 13, 1995; gift to NGA, 2002.
- Wechsler, James. "The Great Depression and the Prints of Blanche Grambs." Print Quarterly XIII (December 1996): no. 40.