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Maritime map of the Philippines, with inset maps of bays showing bathymetry (sea depth), shoals, reefs and anchor points. There is also an inset map of Taal Volcano, and elevations (side views of terrestrial landmarks like mountains and islands).

Produced in Spain, this mid-19th century map details the islands of Visayas, Mindanao and Palawan in the Philippines archipelago. Bathymetry (sea depth) is marked around the islands and on four detailed inset maps of ports in the region.

This map of Asia is from the mid-19th century ‘Grosser Atlas der Erde [Great Atlas of the Earth]’ by the German publisher Albrecht Platt. It shows part of Southeast Asia, including the region’s borders with India and China.

This title of this map refers to orography (which is shown in the use of hachures, short lines/dashes that give a sense of the shape and steepness of terrain) and hydrography (which is shown in the highlighting of coastal regions, shoals and reefs).