United States--History--Revolution, 1775-1783--Economic aspects 15 Pennsylvania--Economic conditions--19th century 4 Philadelphia (Pa.)--Politics and government--20th century 4 Commerce--Philadelphia--19th century 3 Economics--19th century 3 Hispanic Americans--Economic conditions--20th century 3 International trade--18th century 3 more ... Local transit--Economic aspects--Pennsylvania--Philadelphia 3 Philadelphia (Pa.)--Officials and employees 3 Philadelphia (Pa.)--Social conditions--20th century 3 Shipping--Pennsylvania--Philadelphia--18th century 3 Affirmative action programs--Government policy--United States--History--20th century 2 Books and Bookselling--19th Century 2 Booksellers and bookselling -- Pennsylvania -- Philadelphia 2 Charitable Organizations--Philadelphia 2 Commerce--18th century 2 Economic Reform 2 Hispanic American lawyers--Pennsylvania--Philadelphia 2 Hispanic American neighborhoods--Pennsylvania--Philadelphia 2 Hispanic Americans--Employment--Pennsylvania--Philadelphia 2 Hispanic Americans--Housing--Pennsylvania--Philadelphia 2 Hispanic Americans--Social conditions--20th century 2 Hitler, Adolf, 1889-1945--Caricatures and cartoons 2 Immigrant families--United States--Economic conditions 2 Immigrant families--United States--Social conditions 2 Lawyers--Pennsylvania--Philadelphia--20th century 2 Mayors--Pennsylvania--Philadelphia 2 National security--1939-1945--United States--Posters--Specimens 2 Patriotism--United States--Posters--Specimens 2 Philadelphia (Pa.)--City government--20th century 2 Philadelphia (Pa.)--History--20th century 2 Philadelphia Independent Charter Commission 2 Philadelphia Rapid Transit Company--History and criticism 2 Publishers and publishing 2 Publishing 2 Publishing--19th century 2 Puerto Rican Week Festival (Philadelphia, Pa.) 2 Puerto Ricans--Pennsylvania--Philadelphia--Economic conditions 2 Puerto Ricans--Pennsylvania--Philadelphia--Social conditions 2 Savings bonds--United States--Posters--Specimens 2 less ...