lettered in image, at lower left: Tu hai / portato il / signoro del / mondo ; signed and dated in image, at lower right: (...) 21; signed in graphite, below image, at lower left; below image, in graphite, by later hand: Seewald
Ruth Kainen, Washington, D.C. (not in Lugt); Gift to NGA, 2012.
- Jentsch, Ralph. Richard Seewald: das graphisches Werk. Esslingen, 1973: no. 119, only