A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Frank Reed
Date: 2018 Apr 17, 11:00 -0700
To avoid confusion, I'm not talking about historical sextants from a century ago which required a finely-engraved vernier for reading minutes from the sextant. I'm just talking about the small vernier next to the micrometer found on some modern sextants. Here's another image with this highlighted...