Specification of Labor and Materials to be employed and used in the erection and finishing of a Bakery and Coffee House in the Centennial Exhibition Grounds in accordance with drawings finished by H.J. Schwarzmann, Engineer and Architect, c. 1875, Drawer: 8.2. History Files, FP.2010.001.006. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/405810 Accessed April 20, 2025.