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This colourful hand-drawn portolan (nautical) chart was designed to aid navigation. It features a rhumbline network (the web of interconnected lines), bathymetry (sea depth), shoals and reefs, anchor points and written notes.

Hand-drawn portolan (nautical) chart of the Lesser Sunda Islands, featuring a rhumbline network (the web of interconnected lines), shoals, reefs, elevations (side views of landmark mountains), and names of coastal settlements, all to aid navigation.

Colourful hand-drawn portolan (nautical) navigation chart, featuring bathymetry (sea depth), shoals and reefs, and anchor points. The coasts have pictorial representations of landmarks (trees, houses, mountains). Orientated with south at the top.

Hand-drawn portolan (nautical) chart, featuring a rhumbline network (the web of interconnected lines), bathymetry (sea depth), shoals and reefs, elevations (side views of landmark mountains), and names of coastal settlements, all to aid navigation.

This map shows the empires, kingdoms and states of Southeast Asia. Its decorative cartouche features drawings of two women—one with a cornucopia and one with a censer (incense burner)—elephant heads, and a French coat of arms. Nine scales are shown.

A map of the Java Sea between Java, Sumatra and Borneo. The web of lines is a rhumbline network, used to aid navigation. The cartouche and scale are decorated with paintings of Asian people and mythical creatures including cherubs.

The outline of the island of New Guinea is very vague on this early 17th century map of Southeast Asia. The cartouche is decorated with two figures of Asian warriors: one holds a spear, the other a sword. There are also drawings of mermaids.

This 18th century map was designed to aid navigation through the Strait of Malacca between Sumatra and the Malay Peninsula. Shoals, reefs and islands are marked, and the numbers printed on the strait record sea depth (bathymetry).

Four long rivers flow south through mainland Southeast Asia on this map: the ‘Menan’, ‘Manthabam’ and ‘Cosmin’ originate at a mythical lake (‘Chiamai Lac’) in southern China, while the ‘Mecon’ (Mekong) flows from the hills of Cochinchina (Vietnam).

Interestingly, this map from the year 1700 shows the world as the Greeks and Romans knew it. Therefore, Southeast Asia is labelled as 'PARTS UNKNOWN TO THE ANCIENTS' and lacks place names e.g. Sumatra is named ‘Taprobana I. according to some’.

The cartouche on this map of Asia is decorated with a colourful painting illustrating the region’s commerce, with Asian merchants displaying an assortment of goods, including jewellery, porcelain vessels and figurines, textiles and exotic animals.

A brightly-coloured hand-drawn map of the Gulf of Siam, made for a ship’s captain. The elaborate compass roses are the centre of a rhumbline network, a web of lines to aid navigation. Bathymetry (sea depth), islands, shoals and reefs are also marked.