Refine by:
-
▾ Subject
- Time Measuring Instruments (9)
- Marine navigation (6)
- ASTRONOMY (3)
- Longitude (3)
- Magnetism (3)
- Nautical instruments (3)
- Navigation (science) (3)
- Horology (1)
- Navigation (1)
-
▾ Date
- 1700s C.E. (9)
- 1800s C.E. (6)