Admiralty Chart No 483a Trinidad Island and Gulf of Paria, Published 1869, William Chimmo, 19 May 1869

Nautical chart of trinidad island and the gulf of paria. Surveyed by commander w. Chimmo, assisted by lieut. W. J. L. Wharton, sub-lieut. E. R. W. Noble & nav. Sub-lieut. C. W. Baillie, hm surveying ship gannet, 1866-8. Nav. Lieut. J. J. Covey, not current - not to be used for navigation! Date: 19 May 1869.