Railroad History--Pennsylvania 5 Banking--Philadelphia--20th century 1 Banks and Banking--19th century 1 Banks and banking--Pennsylvania 1 China--Commerce 1 Coal Industry--20th century 1 Coal Industry--Pennsylvania--19th century 1 more ... Coal mines and mining--Pennsylvania 1 Coal--Northampton and Luzerne Cos 1 Cotton mills--19th century 1 Electric Lighting--19th Century 1 Investment--19th Century 1 Local Politics--Philadelphia--20th Century 1 Newspaper Columns--Philadelphia--20th century 1 Phonograph--Sales and Development 1 Railroads--Pennsylvania 1 Tariffs--19th century 1 Technological Development--19th Century 1 less ...