Part of the Frick Collection Archives Repository
Moravia, Czech Republic, Box: 25, Folder: 13. Richard P. Wunder Research Files, MS.002. Frick Collection Archives.
Moravia, Czech Republic, Box: 25, Folder: 13. Richard P. Wunder Research Files, MS.002. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/15723 Accessed August 13, 2025.
