lower left verso by later hand in graphite: K10093 = Sch 372 IIb; bottom left verso by later hand in graphite: 260; lower right verso by later hand in red crayon: 132; bottom right verso by later hand in graphite: 9y76; 25
- Modern German Prints and Drawings from the Kainen Collection, National Gallery of Art, Washington, DC, 2014.
- Dube, Annemarie and Wolf-Dieter Dube. E.L. Kirchner; das graphische Werke. Munich: Prestel-Verlag, 1967, no. (I) 384, ii/ii