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The Cape Ann Museum is pleased to offer a tour of the new Fresnel Lens Gallery with Thacher Island Association President Paul St. Germain on Saturday, September 6. The First Order Fresnel lens on display at the Museum is one of the original lamps from the twin lighthouses on Rockport’s Thatcher Island. The lens can now be seen in all its glory in a stunning new gallery, featuring audio-visual components about Thacher Island and the lighthouses that were constructed there, as well as related art and artifacts. The massive Fresnel lens was made in Paris and installed in the south lighthouse tower on Thacher Island off Rockport in
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