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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Cylindrical Slide Rule tube poll
From: Gary LaPook
Date: 2010 Jan 29, 23:54 -0800
From: Gary LaPook
Date: 2010 Jan 29, 23:54 -0800
I suspect that the paper scale has simply shrunk over time, it is probably more than eighty years old.
gl
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