Refine by:
-
▾ Subject
- ASTRONOMY (10)
- Longitude (7)
- Marine navigation (7)
- Time Measuring Instruments (5)
- Nautical instruments (4)
- Magnetism (3)
- Geographical exploration (1)
- Navigational aids (1)
- PUBLISHING (1)
- SCIENCE (1)
- TRAVEL (1)
-
▾ Date
- 1700s C.E. (4)
- 1800s C.E. (10)