Baldwin locomotives 15 History 15 Locomotive works 10 Locomotives 8 Industrial equipment industry 2 Railroads 2 Broad St., N and Spring Garden St 1 more ... Business travel 1 Catalogs 1 Charities--Pennsylvania--Philadelphia 1 College trustees--United States 1 Commerce 1 Department stores--Pennsylvania--Philadelphia 1 Depressions--1929--Pennsylvania--Philadelphia 1 Description and travel 1 Factories 1 French--Genealogy 1 Genealogical correspondence 1 Genealogy 1 Genealogy--Vauclain family 1 Hotels--Pennsylvania--Philadelphia 1 Husband and Wife--Correspondence 1 Industrial equipment 1 Insurance companies--United States 1 International travel 1 Jews, American 1 Mortgage banks--United States 1 Motion picture theaters--Pennsylvania--Philadelphia--1920-1940 1 Pennsylvania--Politics and government 1 Personal Correspondence 1 Philadelphia 1 Philadelphia (Pa.)--City planning 1 Political conventions--Pennsylvania--Philadelphia 1 Presidents election 1 Radio stations--United States 1 Railroad equipment industry--United States 1 Railroad travel 1 Real estate business--Pennsylvania 1 Real estate business--Records and correspondence 1 Savings and loan associations--Pennsylvania--Philadelphia 1 less ...