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49395 approaching Blue Anchor, 1 Oct 2005. Note the sighting board behind the signal arm, used to make the arm easier to see in locations where the background might be dark or confusing. |
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49395 approaching Blue Anchor, 1 Oct 2005. Note the sighting board behind the signal arm, used to make the arm easier to see in locations where the background might be dark or confusing. |
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