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Hand-drawn plans of Rockford mill
Regional map of Pennsylvania Railroad effective November 1, 1955
Philadelphia County Civil Defense emergency routes
En route servicing facilities - diesel
En route servicing facilities - steam
Map, Downingtown to Philadelphia, Pa.
Completed electrification New York/Washington, map
Suburban electrification, Philadelphia to Wilmington, Del., part of map
Suburban electrification, Philadelphia to Wilmington, Del., part of map
Plan of Eddystone Manufacturing Company
Map of Altoona and Vicinity
Map of Altoona and Vicinity
Map of Lewistown, Pa. and vicinity
Map of Huntingdon, Pa. and vicinity
Reservoir and vicinity at Wilmore, Pa., mountain electric project, map of territory
Altoona, Pa. and vicinity, water supply
Pennsylvania Railroad and connections, part of 3192
Pennsylvania Railroad and connections, part of 3193
Relief map of Cumberland Valley Railroad and connections
Hand-drawn plans of Kentmere mill
Pennsylvania Railroad Atlas, Overbrook to Paoli
Pennsylvania Railroad Atlas, Overbrook to Paoli Pa., index
Hot box detector map, section
Pennsylvania Railroad Atlas, Ardmore Station and Vicinity
Pennsylvania Railroad Atlas, Radmore Township and Lower Marion Township

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