Iron industry and trade--Pennsylvania 10 Iron Manufacturing--19th century 4 Forges and Furnaces--Pennsylvania--19th century 2 Iron Manufacturing--Mid-19th Century 2 Iron industry and trade--United States--History 2 Iron manufacturing--Pennsylvania--18th century 2 Iron works 2 more ... Merchants--Pennsylvania--Philadelphia--18th century 2 Accounts--18th century 1 Architectural elements--Pennsylvania--Philadelphia 1 Autographs--19th century 1 Business Transactions--Philadelphia--19th century 1 Business--History--Pennsylvania--Philadelphia--20th century 1 Cast-Iron pipe 1 Chandler, Theophilus Parsons Jr, 1845-1928 1 Commerce--18th century 1 Commerce--West Indies--18th century 1 Doors and doorways--Philadelphia 1 Dry goods--18th century 1 Dulany family 1 Economic Recessions--18th century 1 Family life--19th century 1 Family life--Philadelphia--18th-19th Century 1 Fences, iron--Philadelphia 1 Foundries--New Jersey 1 French and Indian War 1 Gasholders 1 Genealogy 1 Geology--South Mountain District, Pa.--Surveys 1 Historic buildings--Pennsylvania--Philadelphia 1 Homes and Haunts--Pennsylvania 1 Independence Hall (Philadelphia, Pa.) 1 Indians--18th century 1 Industry, Trade, and Tariffs--19th century 1 International trade--18th century 1 International trade--19th century 1 Iron Industry--Pennsylvania--Pittsburgh 1 Iron Manufacturing -- Lancaster County 1 Iron Manufacturing--Lancaster County 1 Iron industry and trade--Cumberland County, Pa 1 less ...