Physical chart of the indian ocean – johnston, 1843

Showing the temperature of the water, the currents of the air and ocean, directions of the wind etc.
Original antique steel engraving
With original hand-colouring
Engraved by W. & A.K. Johnston
Published by J. Johnstone & W & A.K. Johnston, Edinburgh, 1843
Map size: 59 x 49cm