lower left in graphite: 15/30; lower center in graphite: Archipelago; lower right in graphite: SW Hayter 41; lower left verso in graphite: 38740 GR; lower right verso in graphite: AE #6472
(Annex Galleries, California); 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. 141.