Admiralty Compass Observatory, 1842-1971
Experimental mk's (marks), Holmes Tele- Compass, n.d.
Record Details
| Item reference: | ACO/5/18/1 |
|---|---|
| Catalogue Section: | Public records: records of the central administration of the Royal Navy and the Merchant Navy |
| Level: | ITEM |
| Extent: | 1 |
| Creator: | Admiralty Compass Observatory |
| Credit: | © Crown copyright. National Maritime Museum, Greenwich, London |