Refine by:
-
▾ Subject
- ASTRONOMY (9)
- Longitude (9)
- Tides (5)
- Navigational aids (3)
- Marine navigation (2)
- Nautical instruments (2)
- Time Measuring Instruments (1)
-
▾ Date
- 1700s C.E. (6)
- 1800s C.E. (4)