International trade--18th century 42 International trade--19th century 30 Shipping--Pennsylvania--Philadelphia--18th century 13 Merchants--Pennsylvania--Philadelphia--18th century 12 Shipping--Pennsylvania--Philadelphia--19th Century 6 International Trade--18th century 4 Commerce 3 more ... Commerce--Philadelphia--18th century 3 Commerce--Philadelphia--19th century 3 French and Indian War 3 United States--History--Revolution, 1775-1783--Economic aspects 3 African Americans 2 China--Commerce 2 Commerce--Cotton--19th century 2 Commerce--West Indies--18th century 2 Dry Goods--Philadelphia--18th century 2 Employment 2 History 2 Labor unions 2 Labor unions and communism 2 Merchants--Dry Goods--Philadelphia--18th century 2 Merchants--Pennsylvania--Philadelphia--19th century 2 Railroad Equipment--19th Century 2 Shipping--18th century 2 Shipping--19th century 2 Slavery--Law and legislation--United States--History 2 Slavery--United States--History 2 Tariff 2 Tea--Sales and Trade 2 83.42 international trade 1 Accounts--19th century 1 Affirmative action programs--Government policy--United States--History--20th century 1 American Bar Association 1 American Friends Service Committee 1 Anglo-American relations 1 Arbitration (Administrative law)--United States 1 Asociacion Nacional Pro Personas Mayores (U.S.) 1 Bekleidungsindustrie 1 Billy Graham Evangelistic Association 1 Blue Cross of Greater Philadelphia 1 less ...