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A sketch of the field of battle with the disposition of the troops in the beginning of the engagement of the 9th of July on the Monongahela 7 miles from Fort Du Quesne.

Scale 1:10,800; 300 yards to an in. Manuscript, pen-and-ink. Relief shown by hachures. The name R. Ohio applies also to the Allegheny. "No. 27." Available also through the Library of Congress Web site as a rast More

A map of the land abt. Red Stone and Fort Pitt,

Scale ca. 1:600,000. Title from verso. Manuscript, pen-and-ink. Relief shown pictorially. The title, land tract boundaries with owners' initials, and some place names have been identified as annotations by Geor More

Map of Pennsylvania, New Jersey, and Delaware : compiled from the latest authorities.

Hand colored to differentiate counties and state boundaries. Relief shown by hachures. Also shows mileages along principal roads. Signed in lead-pencil on inside of cover: Millard Fillmore. Includes 4 regional More

Greater Pittsburgh region, southwestern Pennsylvania; counties of Allegheny, Armstrong, Beaver, Butler, Washington, and Westmoreland, 1971

Scale 1:125,000; 1 in. equals approx. 2 miles; 1 cm. equals 1.25 km. "Contour interval 100 feet." "Lambert conformal conic projection." "Compiled in 1971 from USGS quadrangles dated 1953-1969." "50,000-foot gri More