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We often get asked why some lighthouses used curtains or shades and others used a lens cover, to protect the lens and brass from the harmful rays of the sun.
The answer is – we really don’t know. But a good guess is that a lens cover was much easier and in the long run, cheaper to maintain than curtains.
Shown here is an early view of Maine’s Monhegan Island Lighthouse with curtains and a later view showing a lens cover.
This story appeared in the
Nov/Dec 2018 edition of Lighthouse Digest Magazine. The print edition contains more stories than our internet edition, and each story generally contains more photographs - often many more - in the print edition. For subscription information about the print edition, click here.
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