About 98 results ()
Refine by:
-
▾ Collection
- National Maritime Museum Manuscripts (2)
- Papers of John Pond (54)
- Papers of Nevil Maskelyne (2)
- Papers of the Board of Longitude (40)
- Royal Greenwich Observatory Archives (98)
-
▾ Subject
- Time Measuring Instruments (95)
- Longitude (66)
- Marine navigation (46)
- Horology (41)
- Legislation (1)
- Magnetism (1)
-
▾ Date
- 1700s C.E. (3)
- 1800s C.E. (93)
- 1900s C.E. (2)