A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: ASA Douglas Style Plotter
From: Herman Dekker
Date: 2017 Oct 16, 03:16 -0700
Can you explain or give one example for the drilled holes.
You did the same on your blog with the Square Pocket Protractor.
I have never understood the use off the holes??
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