Nautical chart of the east coast of Africa from Delagoa (Maputo) Bay to the River Zambezi. Surveyed by Capt. Pelham Aldrich, assisted by Lieuts. H. Dyke, A. Havergal, A.M. Field, C.J. Baker, H.B. Anson &amp; W. Richardson, H.M.S. Sylvia, 1884, with additions from Portugese Government surveys to 1910. Not current - not to be used for navigation!
<bdi><a href="https://en.wikipedia.org/wiki/en:United_Kingdom_Hydrographic_Office" class="extiw" title="w:en:United Kingdom Hydrographic Office"><span title="UK government agency concerned with providing hydrographic and marine geospatial data">United Kingdom Hydrographic Office</span></a>
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