Scale not given. Manuscript, pen-and-ink and watercolor. Relief shown pictorially. Shows location of forts, western Pennsylvania, northern Virginia, northern Maryland, Maryland-Pennsylvania boundary line, and "... More
Imprint 2. Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 108, Folder 4.
Dedicatoria : "Inscribed to the Right Honble. Charles Townshend, and the Honble. Richard Walpole Representatives in Parliament for this Borough, By their most Humble Servant Mostyn Yno. Armstrong, County Surveyor"