Allegheny County, Pittsburgh, Pa., Composite Views and Souvenir Folders: Souvenir Folder of Pittsburgh, Pa., The Industrial City, Picture of Block House, 0741A
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.