NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

HOME

Re: Sextant with an umbrella
From: Bill Morris
Date: 2015 Oct 1, 18:53 -0700

I agree with Luc. It's a Blish prism. More details and a patent drawing can be found here: http://sextantbook.com/2012/04/

Bill Morris

Pukenui

New Zealand

Add Images & Files
Name or NavList Code:	Email:

Name:
	(please, no nicknames or handles)
Email:

NavList ID Code: