Second state with addition of a reference to Fort Sullivan.
Engraved by Samuel Turner Sparrow.
"Published as the act directs May 30th 1775."
"Longitude west from London."
Map printed on separate four sheets.
Relief shown by hachures. Depths shown by soundings.
Shows precinct boundaries.
Insets: "The harbour of Port Royal" [ca. 1:200,000]; "The bar and harbour of Charlestown" [ca. 1:75,000]
Scale ca. 1:530,000.