From actual surveys, by Captn. Montresor, engir., 1768. Montresor, John, 1736-1799. CREATED/PUBLISHED London, Printed & sold by A. Dury [1768] NOTES Scale ca. 1:390,000, 60 miles to a degree. Relief shown pictorially. Depths shown by soundings. Imperfect: Deterioration along creases.