A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Simon Horwith
Date: 2021 Feb 15, 16:41 -0500
I suspect I will be one of many (but perhaps the first, if I type fast enough) to point you to William Morris' blog post:
You might also be interested in his remarkable book on restoring and servicing sextants, "The Nautical Sextant", from Paradise Cay books.
I won't try to summarize the blog post, you'll be better served just reading it :).