Map Lovers’ Monday: Philadelphia Topography
Map Lovers’ Monday: Topography of Philadelphia from 1863
Map Lover’s Monday: Fairmount Park, 1869
Pennypack Park Map
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Map Lovers’ Monday: 1896 Suburban Transportation Map
Drawing Dock Creek
Petition of manufacturers along the Schuylkill River in Philadelphia for a new upstream water supply, 1868