Part of the Frick Collection Archives Repository
Butler's livery, 1938, Box: 21, Folder: 5. Eagle Rock Papers, FFP.09. Frick Collection Archives.
Butler's livery, 1938, Box: 21, Folder: 5. Eagle Rock Papers, FFP.09. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/13985 Accessed June 23, 2025.
