Part of the Frick Collection Archives Repository
Pennsylvania - Pittsburgh - Union Arcade Building - Exteriors, undated, Box: 24, Folder: 2. Frick Family Photographs, FFP.05. Frick Collection Archives.
Pennsylvania - Pittsburgh - Union Arcade Building - Exteriors, undated, Box: 24, Folder: 2. Frick Family Photographs, FFP.05. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/13280 Accessed December 03, 2025.
