A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Frank Reed
Date: 2020 Apr 18, 23:35 -0700
Interesting analysis. Thanks!
If you want to explore Radler de Aquino's work in further detail, there are many volumes available online. Try this Hathitrust search:
Author: Radler de Aquino.
He had a substantial impact on celestial navigation in the first half of the twentieth century which has been largely forgotten. This was an era when "government issue" replaced individual authorship and creativity in the subject. The war locked that in.