Map of Allegheny County, Pennsylvania, with the names of property-holders : from actual surveys /

Shows buildings with landowners' names in rural areas; does not show property boundaries.
Relief shown by hachures.
Hand col. to identify municipalities (townships, boroughs, cities).
"Entered according to Act of Congress in the district court of the eastern district of Penn'a by Sidney & Neff 1851."
Printed in NW/NE/SW/SE segments (sheets).
LC copy imperfect: Brittle, shellacked, annotated in lead pencil on both sides, missing small sections of margin at sheet edges, stained at upper margin.
LC Land ownership maps, 699
Includes directory of post-offices and ill. of court house.
Available also through the Library of Congress Web site as a raster image.
3 copies