Admiralty Manual for the Deviations of the Compass. Originally edited in 1862 by F. J. Evans ... and Archibald Smith ... Sixth edition. Published by order of ... the Admiralty. [With plates (1893)
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British Library · HMNTS 10496.cc.24. · Digitised by the British Library with Microsoft · No known copyright restrictions (public domain). Free to use for anything.
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