Carte Plate de la Partie Septentrionale du Détroit de Malac: depuis la Rade D'Áchem jusqu'a Malac
1775
Indonesia, Malaysia
Map of the northern Malacca Strait—between Sumatra and Malaya—with shoals and reefs marked, some labelled as ‘dangerous’. The web of lines is a rhumbline network, while the numbers indicate sea depth (bathymetry), both used to aid navigation.