signed, numbered and dated in graphite, below image: 5/40 DIX 23; at the bottom left corner, in graphite, by later hand: Paul Westheim; on verso, in graphite, by later hand: L A 6052
(Jörg Maass Kunsthandel, Berlin); Ruth Kainen, Washington, D.C., purchased November 1, 2006; Gift to NGA, 2012.
- Karsch, Florian. Otto Dix; das graphische Werke.Hannover: Fackeltrager-Verlag Schmidt-Kuster, 1970: no. 63a, only