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  • Mr. Armstrong's rough draft of the country to the west of Susquehanna.

    Scale ca. 1:800,000. Title from annotation on verso. Mounted on cloth backing, with reinforced edges. Watermarked. Relief shown pictorially. Shows central Pennsylvania and the location of "F. du Quesne" in western Pennsylvania. ...

    • Contributor: Armstrong, John
    • Original Format: Maps
    • Date: 1755