On the port side a red light so constructed as to show an unbroken light over an arc of the horizon of 10 points of the compass, so fixed as to throw the light from right ahead to 2 points abaft the beam on the port side, and of such a character as to...
The New Admiralty Regulations Respecting Lights and Fog Signals; with Notes ... - Page xv
by Great Britain. Admiralty - 1858 - 27 pages
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