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Keywords:
PENNSYLVANIA RAILROAD,
RAILWAYS,
RAILROADS,
CONSTRUCTION,
MANAGEMENT,
STATISTICS,
COSTS,
LOCOMOTIVES,
BRIDGES,
TUNNELS,
TRACK,
PERMANENT WAY,
ROLLING STOCK,
CARRIAGES,
WAGONS,
BRAKES,
AXLES,
GAUGES,
TRAFFIC,
EARTHWORKS,
RAILS,
CLIMATE,
MAINTENANCE,
CURVES,
BOILERS,
REVENUE,
VIGNOLES,
PULLMAN,
PENNSYLVANIA,
PHILADELPHIA,
PITTSBURGH,
UNITED STATES,
USA,
CANADA,
NORTH AMERICA
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© Thomas Telford and ICE
1875
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