Signature: In plate: butterfly
Harris Brisbane Dick; Vendor: Dick Estate, U.S. Trust
Kennedy 305 cancelled; Glasgow 319 from the cancelled plate
Edward Guthrie Kennedy, Royal Cortissoz The Etched Work of Whistler: illustrated by reproductions in collotype of the different states of the plates. The Grolier Club, 1910, cat. no. 305 from cancelled plate.
Margaret F. MacDonald, Grischka Petri, Joanna Meacock James McNeill Whistler: The Etchings, a catalogue raisonné, University of Glasgow on-line website at http://etchings.arts.gla.ac.uk. University of Glasgow, 2012, cat. no. 319 from cancelled plate.