Part of the Frick Collection Archives Repository
Telescope, 1939, Box: 30, Folder: 3. Eagle Rock Papers, FFP.09. Frick Collection Archives.
Telescope, 1939, Box: 30, Folder: 3. Eagle Rock Papers, FFP.09. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/14110 Accessed July 20, 2025.
