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  • Copy of a sketch of the Monongahela, with the field of battle,

    Scale not given. Manuscript, pen-and-ink and pencil. Relief shown by hachures. In this map the name Ohio R. ou la belle rivière is applied also to the Allegheny. The words "direction of" ...

    • Original Format: Maps
    • Date: 1755
  • 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 George Washington made ...

    • Contributor: Washington, George
    • Original Format: Maps
    • Date: 1780
  • Plan of the lots laid out at Pittsburg and the Coal Hill.

    Scale ca. 1:1,600. Title, on label, on verso: Plan of the lots at Pittsburg & Coal Hill and the manor. Manuscript, pen-and-ink and watercolor. Imperfect: Deteriorated along previous fold lines. Watermark: J. ...

    • Original Format: Maps
    • Date: 1787
  • Plan and perspective view of Pittsburgh.

    Scale not given. Date from dealers catalog: [1760-70] Manuscript; pen-and-ink and watercolor. LC copy incomplete: Lower left and right sections missing. Includes index to points of interest and illus. Oriented with north ...

    • Contributor: Day, E. A.
    • Original Format: Maps
    • Date: 1760