lower left in blue pencil: No. 2 Third State; lower center in graphite: Cronos; lower right in blue pencil: SWH 2-11-44; lower right in graphite: SW Hayter
Reba and Dave Williams, Greenwich, Connecticut; acquired 2008 by the National Gallery of Art
- Black, Peter, and Désirée Moorhead. The Prints of Stanley William Hayter: A Complete Catalogue. Mount Kisco, New York: Moyer Bell Limited, 1992, no. 160, iii/vi.