A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Tony Oz
Date: 2016 Nov 24, 10:09 -0800
The earliest discussion of the flat version of the Bygrave "calculator" that I could find by search is this: http://fer3.com/arc/m2.aspx/flat-Bygrave-Cortes-feb-2014-g26983
Is it the real beginning of the thread? Where to start my reading? Waht was the final version of the tool?
Thank you in advance.