10. Graff for FWW Signs [15 .tif files of prints and pictures including Bartlett Schuylkill Water Works; Fairmount Water Works; Castner; Aquarium at FWW from Free Library of Philadelphia], 2009 October 19, Drawer: 3-1, Box: 6, Disk: 10. Compact Disk Collection, FP.2016.005. Fairmount Park Historic Resources Archive. https://pprarchives.libraryhost.com/repositories/2/archival_objects/1539 Accessed June 08, 2025.