Mechanical Rooms (Air Handles #24 and 5, Electrical Substation in B6, Control Panel for Air Handler in Section C6), Great Stairhall, West Foyer and Restaurant, View XI, 1997 February

Mechanical Rooms (Air Handles #24 and 5, Electrical Substation in B6, Control Panel for Air Handler in Section C6), Great Stairhall, West Foyer and Restaurant, View XI, 1997 February, Box: 85. Rights and Reproductions Photograph Collection, RNR. Philadelphia Museum of Art, Library and Archives. https://pmalibrary.libraryhost.com/repositories/3/archival_objects/74063 Accessed December 23, 2024.