Philadelphia County, Philadelphia, Pa., Souvenir Folders, Souvenir of Sesqui-Centennial Exposition, Historical Philadelphia, City Hall, 1615M
postcard, 6 in. x 4 in.; This collection of approximately 29,000 postcards from the 1880s to the 1970s includes images from across the U.S. and all 67 Pennsylvania counties and highlights cities, towns, buildings, local businesses and industries, parks, and scenic and street views. Additional images include business and industry advertising, highways, states, and foreign countries.