History 23 Business History--19th Century--Philadelphia 8 Business--History--Pennsylvania--Philadelphia--20th century 5 Business 4 Business enterprises 4 Business--History--Pennsylvania--Philadelphia--18th century 4 Commerce 4 more ... Business--History--Pennsylvania--Philadelphia--19th century 3 Finance 3 Iron industry and trade 3 Textile industry 3 Advertising agencies 2 Banks and banking 2 Bituminous coal 2 Business History--18th Century 2 Business history 2 Businessmen 2 Coal mines and mining 2 Department stores 2 Estate administration--18th century 2 Periodicals 2 Price maintenance 2 Railroads 2 Rates and tolls 2 Shipping--Pennsylvania--Philadelphia--18th century 2 Slavery 2 Sources 2 United States--History--Civil War, 1861-1865--Personal Correspondence 2 Accounts--18th century 1 Accounts--19th century 1 Advocacy organizations--Philadelphia--20th century 1 Affirmative action programs--Government policy--United States--History--20th century 1 African American business enterprises 1 African American business enterprises--Pennsylvania--Philadelphia 1 African American businesspeople--Pennsylvania--Philadelphia 1 African American--Businesses 1 African-American--Businesses 1 Anthracite coal industry 1 Arts 1 Autographs 1 less ...