A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding
From: Andrés Ruiz
Date: 2017 Nov 10, 09:11 +0100
Astronomical methods in aerial navigation, by K. Hilding Beij.
N1 - "Reprint of Report 198, originally published November, 1924."
N1 - "Prepared by the Aeronautic instruments section of the Bureau of standards, at the request of the National advisory committee for aeronautics."--p. 5
--> See page 34, fig 22 - Two star diagram