Refine by:
-
▾ Subject
- Longitude (8)
- ASTRONOMY (4)
- Horology (4)
- Marine navigation (3)
- Navigational aids (3)
- Geographical exploration (2)
- Nautical instruments (2)
- Time Measuring Instruments (2)
- Chronomoters (1)
-
▾ Date
- 1700s C.E. (5)
- 1800s C.E. (4)