Sounding charts, Blyth, Northumbrland
Surveyed by Staff Captain T. H. Tizard, R.N, H.M. Surveying Ship Triton 1890. First published 25th June 1891, updated June 1899. Annotated 1904, to show new magnetic variation. Scale’s in Cables (sea miles) & feet. Many company’s & individuals named for chart production. ‘D 36′ & ’35.’ on back.
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