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Map of stream ship trade routes around Southeast Asia. Rivers, railways, submarine telegraph cables, lighthouses (fixed, revolving and flashing), graving docks and coaling stations are marked. An inset map shows a railway route from Britain to Asia.

A nautical chart of the Indian Ocean showing bathymetry (sea depth), including in great detail around the seas and straits of Southeast Asia.

Southeast Asia is shown on sheets two and three of this 12-sheet map of the Indian and Pacific oceans, including detailed inset maps of the straits of Singapore, Bangka, Gaspar and Sunda, with bathymetry (sea depth), shoals, reefs, anchorages etc.

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.