A comparable plaquette was formerly in the Gutekunst collection in Stuttgart.(1) The Lehman work is a thick and heavy cast.
Catalogue entry from: Frits Scholten. The Robert Lehman Collection. European Sculpture and Metalwork, Vol. XII. Frits Scholten, New York: The Metropolitan Museum of Art in association with Princeton University Press, 2011, p. 173.
1. Sale, Munich, 7 – 8 November 1910, lot 368, pl. 10.