Refine by:
-
▾ Subject
- Time Measuring Instruments (201)
- Marine navigation (154)
- Longitude (138)
- Horology (72)
- ASTRONOMY (45)
- Geographical exploration (38)
- Navigational aids (25)
- Nautical instruments (19)
- Navigation (11)
- TRAVEL (10)
- Discoveries in geography (7)
- Legislation (5)
- Aids to navigation (2)
- MATHEMATICS (2)
- MEDICAL SCIENCES (2)
- Maps (2)
- Medicine (2)
- PUBLISHING (2)
- Jupiter (Planet) (1)
- Magnetism (1)
-
▾ Date
- 1700s C.E. (74)
- 1800s C.E. (188)
- 1900s C.E. (4)