Northern part of the Mozambique Channel, part 4 from the volume

Northern part of the Mozambique Channel, showing the African coast from Sofala to Mozambique and the northwest of Ilha de Sao Lovrenco, part 4 from the volume.

From a volume of 10 manuscript charts of the east coast of Africa to the Java Sea.

Bottom right a gauge is discernible, with underneath Escalla de 10 legoas de 17 emeio por hu grao.