Allegheny County, Pittsburgh, Pa., Composite Views and Souvenir Folders: Pittsburgh, chief industrial center of the world and fifth in metropolitan population among the great cities of the United States, 0741C
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.