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Plan of Singapore harbour, with wharfs and buildings. A roadstead—a body of water sheltered from tides/currents, for ships to anchor—is labelled ‘Singapore Road’. Islands, shoals and reefs are marked, as are roads and buildings in the city.

A map to aid in the navigation of the rivers leading to Saigon (Ho Chi Minh City, Vietnam). Details include bathymetry (water depth), currents, and a side view (or ‘elevation’) of hills to use as a landmark. Tides are described in written remarks.