Puerto de Apra on the island Guahan vulgo Guam [cartographic material] /

Nautical chart of Puerto de Apra, Guam, showing the outline of the Port of Apra on the west coast of Guam. The inset refers to Tinian Bay, Tinian Island in the Marianas. Relief shown by shoals and soundings.; 'Guahan vulgo Guam' means 'Guahan commonly known as Guam'.; Inset contains the seal of the Hydrographic Office, with rhumb lines over water and a decorative arrow pointing north.; Originally issued as part of an untitled composite atlas compiled by Alexander Dalrymble, circa 1803.; Plate 438 in v. [2] from: [The East India pilot : a collection of charts, maps and plans for navigation]. [London : Published by A. Dalrymple, 1762-1801]; Also available in an electronic version via the internet at: http://nla.gov.au/nla.map-rm4455. Inset: Tinian Bay : surveyed in 1767. Scale not given