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Map of Allegheny County, Pennsylvania, 1890 : with adjoining parts of Westmoreland, Washington & Beaver counties.
General-content county map showing roads, railroads, place-names, coal outcrops/mining areas, individual buildings in rural areas, and householders' names in rural areas. Does not show property lines or cadastral data. Also covers the Pittsburgh metropolitan area. Hand col. to emphasize township, borough, and city boundaries. Relief shown by hachures. "Entered according to Act of Congress in the year 1890 by Otto Krebs, in the office ...