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A Lightships Lantern

A Lightships Lantern

The sun valve attachment (top left of photograph) automatically lights and extinguishes this lantern, which is fixed to the head of the lightship's mast. Before the introduction of this sensitive mechanism, lightships had to be manned.

Other pictures from The Coastwise Lights of Britain

Bishop Rock, Scilly Isles

Lantern and Day Marks

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