Western Australia — Cockburn Sound, Gage Roads & Swan River (1830–1841) UBD Map Size: 715 mm (w) x

Size: 715 mm (w) x 595 mm (h)

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Western Australia — Cockburn Sound, Gage Roads & Swan River (1830–1841) UBD Map Size: 715 mm (w) xWestern Australia Cockburn Sound, Gage Roads & Swan River (18301841) The Admiralty chart that shaped Perths maritime gateway This superb British Admiralty chart records the moment Western Australias principal harbour approaches were first unified into a single, authoritative navigation sheet. Originally surveyed in 1830 by John Septimus Roelater Western Australias first Surveyor Generaland updated through 1841 by Thomas Woore and John Lort Stokes, it