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<p>[QUOTE="David Askett, post: 13139262, member: 4727"]Thanks, Frank. Navigation lights are normally made so that they’re visible only from certain angles, like the second lamp pictured above. If memory serves, it’s a 112.5 degree arc for green and red starboard and port lights, and 135 degrees for white stern lights. The red light I found would be visible through a full 360 degrees, which is why I think it was a pier light meant to mark something solid that a ship wouldn’t want to hit. These are typically red. Of course, navigation lights weren’t quite standardized yet in the 1860’s, so anything can go![/QUOTE]</p><p><br /></p>
[QUOTE="David Askett, post: 13139262, member: 4727"]Thanks, Frank. Navigation lights are normally made so that they’re visible only from certain angles, like the second lamp pictured above. If memory serves, it’s a 112.5 degree arc for green and red starboard and port lights, and 135 degrees for white stern lights. The red light I found would be visible through a full 360 degrees, which is why I think it was a pier light meant to mark something solid that a ship wouldn’t want to hit. These are typically red. Of course, navigation lights weren’t quite standardized yet in the 1860’s, so anything can go![/QUOTE]
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