Navigation: an astrolabe, a cross-staff, and a back-staff or Davis's sextant. Drawing after Edmund Gunter, 1624.
- Gunter, Edmund, 1581-1626.
- Reference:
- 46655i
Licence: Public Domain Mark
Credit: Navigation: an astrolabe, a cross-staff, and a back-staff or Davis's sextant. Drawing after Edmund Gunter, 1624. Wellcome Collection. Source: Wellcome Collection.
