Part of the Frick Collection Archives Repository
Munich (Germany), Galerie Heinemann - Arch of Janus Series, Box: 4, Folder: 57. Richard P. Wunder Research Files, MS.002. Frick Collection Archives.
Munich (Germany), Galerie Heinemann - Arch of Janus Series, Box: 4, Folder: 57. Richard P. Wunder Research Files, MS.002. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/16290 Accessed April 26, 2025.
