lower left verso in graphite: [?] proof. / signed wth butterfly; lower left in graphite by unknown hand: a55620 / EHX; lower right in graphite by unknown hand: 15 (circled) / (two tiny circles)
- Kennedy, Edward G. The etched work of Whistler, illustrated by reproductions in collotype of the different states of the plates. 6 vols. New York: Grolier Club, 1910.