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Map of eastern New Guinea, showing the routes—mainly along rivers—explored by Sir William MacGregor, the administrator of British New Guinea. The borders with the German colonial territory (Kaiser-Wilhelmsland) and Dutch New Guinea are also marked.

The first two sheets of this eight-sheet map focus on British New Guinea, with German and Dutch colonial areas of New Guinea also shown in part. There is a line marking a proposed change in border between Dutch and British territory.

Very detailed six-sheet map of eastern New Guinea, with numerous inset maps of bays and islands, and other inset maps covering ethnography, explorers of the region, marine routes across the Pacific Ocean, cannibalism, missionaries activity etc.

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.

Map showing the results of an 1884 agreement between the Netherlands and Britain to exchange parts of their colonial territories in New Guinea: the red area was ceded by the Netherlands to Britain; green was ceded by Britain to the Netherlands.

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 late 19th century map of the Dutch East Indies on four sheets, detailing maritime routes around the region. There are also inset maps showing railways, rivers, roads, and telegraph systems, as well as individual islands and cities.

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.

On this map of Asia, colours are used to show the colonial territories of the European powers, and to show Muslim and Buddhist regions: Sumatra is divided between the Netherlands and local rulers; the Straits Settlements underlined in red (British).

On this map of Asia, colours are used to show the colonial territories of the European powers, and to show Muslim and Buddhist regions: Sumatra is divided between the Netherlands and local rulers; the Straits Settlements underlined in red (British).

On the main map, the volcanic regions of Southeast Asia are labelled, active and extinct volcanos are marked, and the 1815 eruption of Tumbora (Mount Tambora on Sumbawa) is highlighted. Even more details are shown on an inset map of Southeast Asia.

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.