A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Michael Bradley
Date: 2022 Jun 27, 14:37 -0700
Peter, you wrote:
'Hmm. Could the vernier have been mis-engraved, perhaps by configuring the dividing engine with settings intended for the arc? How would that have gotten past final quality control?'
Mis-engraving does happen. A batch of the Francis Barker box sextant had that very build error. When I bought mine about fifteen years ago, the build error was a thing you had to look out for ...
All the best