[AUSTRALIA-NSW] Port Jackson Surveyed by Lieut. J. Hutchinson Messrs. J.W. Smith & E. Wilds Mastrs. E. Howard & F. Hixon 2nd. Mastrs. Under the Direction of Capt. H.M. Denham R.N. F.R.S. 1857.

Very detailed, rare hydrographic chart of Port Jackson by T.F. Pullen and G.W. Gubbins of HMS Lark, extending from Drummoyne to Sydney Heads. Shown are soundings, details of streets and large residences of the harbour side suburbs. At top is an inset of North and Middle Harbour.

This Hydrographic chart number 1069 is from a new survey of Port Jackson, first published 15th February, 1890 and with corrections to 1944.

The regular updating of Hydrographic charts by the Hydrographic Office was to ensure that Commanders of ships, pilots and other mariners were able to have the most to date information available to safely navigate foreign waters and ports as new information of changes to sea depths, sand bars, wrecks or other any other pertinent nautical information that could hinder passage became available. As updated charts were offered for sale, the earlier outdated charts in the hands of mariners, pilots, ships owners and sailors were invariably discarded, subsequently making all British Admiralty issued hydrographic charts of the period rare.