Part of the Frick Collection Archives Repository
Pennsylvania - Pittsburgh - Frick Building - Hump removal, 1912, Box: 22, Folder: 8-9. Frick Family Photographs, FFP.05. Frick Collection Archives.
Pennsylvania - Pittsburgh - Frick Building - Hump removal, 1912, Box: 22, Folder: 8-9. Frick Family Photographs, FFP.05. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/13265 Accessed April 29, 2025.
