Signed, on stone, center right: [Whistler's butterfly device] Signed, in graphite, lower rigth: [Whistler's butterfly device]
Stamp, in black, verso: [pentagon] [Albert W. Scholle, Lugt 2923a] Stamp, in black, verso, center of sheet: [CCC trefoil] [Charles C. Cunningham, Lugt 4684]
inscribed, in graphite, lower right corner: B6622 (dealer inventory number) Inscribed, in graphite, lower right corner: W.101 Inscribed, in graphite, verso, lower left corner: a24472 (dealer inventory number) Inscribed, in graphite, verso, several letters which may E R M, which is probably the mark for Emma Regina [Rehberg] Martin [1876-1965], (not in Lugt) Inscribed, in graphite, verso, lower right: 170 [within circle]