Nearly flawless example of this highly detailed working Sea Chart of the coastlines of entire eastern coast of Australia, the Coral Sea, including the Solomons and New Caledonia.
The map includes 13 insets of islands and of parts of the Great Barrier Reef.
The pencil notes seem to track a trip from Newcastle on the coast of Australia to New Zealand and on to Hong Kong.
The map includes a note of expanation and hundreds of soundings and minute navigationaly details, place names, lighthouses (in yellow), sailing directions, etc. One of the most detailed commercial sea charts of the period.