Admiralty Compass Observatory, 1842-1971

Addendum to the catalogue of museum of magnetic compasses etc, marked 'Hall Copy'

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Item reference:	ACO/12/4/1
Catalogue Section:	Public records: records of the central administration of the Royal Navy and the Merchant Navy
Level:	ITEM
Extent:	1 volume
Creator:	Admiralty Compass Observatory
Credit:	© Crown copyright. National Maritime Museum, Greenwich, London