A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Buy or build a modern Bygrave slide rule
From: Seán T. Rickard
Date: 2019 Oct 15, 10:05 -0700
Would like to contact [anyone] about buying/perhaps making a modern Bygrave slide rule. My intent is to use it for practical celestial navigation. Kind regards, Seán T. Rickard
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