1. Maps C.21.f.12(69) Reference (shelfmark): Maps C.21.f.12(69) Title: Corliss Engine [Philadelphia Centennial Exposition]. Photographer: Unknown Scope & Content: Genre: Industrial Photography Close view of engine on display in the Machinery Hall. Stereo half, arched top. Collection Area: Map Collections Languages: Not applicable Date Range: 1876 Extent: 1 item