[ Reply ]
From: Justin Olsen
Location:
Email:
Date: 6/16/2007
Time: 9:46:27 PM
Remote Name: 204.39.208.12
This is more of a question really. I've been wondering how many lighthouses still use their original Fresnel lens. Also, what size is a first order lens as compared to a sixth order?
Copyright © All Rights Reserved.
This
material may not be published, broadcast, rewritten or redistributed.
Terms
of use