signed by artist, lower right, in graphite: Gangolf
Marks and Labels
stamp, verso lower right, in black ink: R
(Jörg Maass Kunsthandel, Berlin); Ruth Cole Kainen, Washington, D.C., purchased November 26, 2005; gift to NGA 2012.
- Rathenau, Ernest. Im Memoriam Paul Gangolf. Berlin: Euphorin Verlag, 1964, undescribed.