Admiralty Compass Observatory, 1842-1971

The Sperry Mark 22, Modulation O, Gyroscopic Compass final report of the trials at the Admiralty Compass Observatory and at sea.

Record Details

Item reference: ACO/S&T/29/4
Catalogue Section: Public records: records of the central administration of the Royal Navy and the Merchant Navy
Level: ITEM
Extent: 1 folder
Date made: 1959 - 1959; 1959-03 - 1959-10 1959
Creator: Admiralty Compass Observatory
Credit: © Crown copyright. National Maritime Museum, Greenwich, London