A Plan of Fort Ontario built at Oswego in 1759

Scale ca. 1:2,450.
Manuscript, pen-and-ink and watercolor.
Has watermark.
Relief shown pictorially.
Copied from the original map in British archives: Brit. Mus. ms. class. no.; [Amer. & W. I., vol. 92, p. 173 of transcript.
Shows the positions of Fort Rascal and of the old fort of Oswego, both of which had been demolished before 1759.
Includes text, "Explanations," and "Profile & section thro' A, B," ca. 1:120.
On verso, in ink: Endorsed. Plan of Fort Ontario at Oswego, the first intended figure was a square, it has been changed to a pentagone, from the report of the engineer, that it would best suit the ground.
On verso, in pencil: Rec'd. May 11, 1908, B.F.S.B.B.
Available also through the Library of Congress Web site as a raster image.
Vault
AACR2: 650/2; 651/3