1. Maps C.21.f.12(55) Reference (shelfmark): Maps C.21.f.12(55) Title: Main Building, north side [Philadelphia Centennial Exposition]. Photographer: Unknown Scope & Content: Genre: Architectural Photography Oblique view, looking along the façade of the building. Stereo half, arched top. Collection Area: Map Collections Languages: Not applicable Date Range: 1876 Extent: 1 item