lower right in plate: SPIELER; lower center in plate: STEVENSON; signed by artist, lower right under platemark, in graphite: Gangolf; by later hand, verso lower margin, in graphite: Die Spieler (Stevenson) G- 246/300-21324; by later hand, verso lower left, in blue pen and ink: 25 [circled]
Ruth Cole Kainen [1922-2009], Washington, DC; gift to NGA 2012.
- Rathenau, Ernest. Im Memoriam Paul Gangolf. Berlin: Euphorin Verlag, 1964, undescribed.