signed by artist, lower right, in graphite: Gangolf; by artist, lower right, in graphite: In danke [illegible] Erinnerung / an eine Th[illegible]stunde / P. G.
Marks and Labels
stamp, verso center, in black ink: R
Ruth Cole Kainen [1929-2009], Washington DC; gift to NGA 2012.
- Rathenau, Ernest. Im Memoriam Paul Gangolf. Berlin: Euphorin Verlag, 1964, no. 37.