Map of Allegheny Co., Pennsylvania : from actual surveys
General-content county map showing relief, roads, railroads, place-names, buildings in rural areas, and householders' names in rural areas. Relief shown by hachures. Also covers the Pittsburgh metropolitan area. Former wall map hand col. to emphasize boundaries of minor civil divisions (cities, boroughs, townships). "Entered according to Act of Congress by H. & C.T. Smith in the year 1862 in ... Eastern District of Pennsylvania."...
Beers, S. N. - Beers, F. W. (Frederick W.) - Prindle, A. - Smith, Gallup & Hewitt - F. Bourquin & Co. - Worley & Bracher