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Produced by the Intelligence Branch of the British War Office, this map shows Dutch colonial territories in maritime Southeast Asia, and their political and military divisions in Java and Madura. British and Spanish territories are also marked.

Three maps of the Caroline Islands. One shows colonised areas in Southeast Asia: Dutch East Indies; British North Borneo, British New Guinea; German New Guinea; Philippines (Spain); Portuguese Timor. The route of the Challenger expedition is marked.

This 1883 map shows European colonial territories in Southeast Asia. An inset map details the proposed French annexation of Tonquin, Annam and Cochin China (modern Vietnam). International telegraph lines are also marked.

A map charting the effects of the 1883 Krakatoa volcanic eruption: a red circle where the eruption was heard; black lines showing the hourly spread of the resulting waves; and a list of ships on which ash fell, or that encountered pumice (with date).

This detailed map of the Dutch East Indies in the mid-19th century contains a great deal of information: topographical details, settlements and administrative areas, roads, railways and maritime routes, telegraph lines, inset maps etc.

Chart of the Indian Ocean, showing climate and weather-related data, including around the seas and straits of Southeast Asia where trade routes are marked, along with monsoon and typhoon regions, and currents during the different monsoon seasons.

Chart of the Pacific Ocean, showing climate and weather-related data, including around the seas and straits of eastern Southeast Asia where maritime trade routes are marked, along with monsoon regions, ocean temperatures and currents.

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.

Marine chart of the Pacific Ocean, including Southeast Asia. Small islands, shoals and reefs are marked, and often named, around the seas and straits of the region.

Includes part of maritime Southeast Asia. New Guinea is labelled as ‘discovered in 1527’—a reference to the Portuguese explorer Jorge de Menezes—with additional labels describing the terrain (‘Very low land’, ‘Coast is not well known’, ‘An Opening’).

Includes part of maritime Southeast Asia. New Guinea is labelled as ‘discovered in 1527’—a reference to the Portuguese explorer Jorge de Menezes—with additional labels describing the terrain (‘Very low land’, ‘Coast is not well known’, ‘An Opening’).