A Chart of the harbour of Boston, with the soundings, sailing-marks, and other directions.

Scale ca. 1:28,000.
LC copy annotated with "No. 2" to the left of the title; concentric circles, drawn in ink, centered on compass roses; and, a stamp "Engr. Dept. U. States Topl. Bureau." Annotated on verso: Boston.
Relief shown by hachures. Depths shown by soundings.
From The North-American pilot for Newfoundland, Labradore, the Gulf and River St. Laurence. 1777. v. 2.
LC Maps of North America, 1750-1789, 955
Available also through the Library of Congress Web site as a raster image.
Vault
AACR2