Search

Navigation map of the northwest coast of Sumatra. Bathymetry (sea depth), anchor points, shoals and other obstructions (clay, coral, mud, stones, sand) are marked, with hills and settlements to use as landmarks.

Navigation map of the west coast of Celebes (Sulawesi), north of Makassar. Bathymetry (sea depth), shoals and other obstructions are marked, with hills and settlements as landmarks, and elevations (side views of hills) to aid navigation.

Navigation map of the west coast of Celebes (Sulawesi), north of Makassar. Bathymetry (sea depth), lighthouses, shoals and other obstructions are marked, with trees and hills as landmarks, and elevations (side views of hills) to aid navigation.

Navigation map of the west coast of Celebes (Sulawesi), north of Makassar. Bathymetry (sea depth), shoals and other obstructions are marked, with hills and settlements as landmarks, and elevations (side views of hills) to aid navigation.

Fifteen separate maps of bays and river mouths of Sumatra, including bathymetry (sea depth), anchor points, reefs and shoals, and tide data. There is a drawing of the mouth of the Pidada-rivier.

Map of the Indian Ocean dominated by a rhumbline network—a web of interconnected lines used to help plot routes—with a compass rose at the centre. At the top there are (incomplete) drawings of people with text in Dutch, French, English and Spanish.