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File:Beavertail Light 4th order Fresnel lens.jpg

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English: 4th order fixed "beehive" Fresnel lens. This was the last such lens installed at Beavertail Light in Jamestown, Rhode Island, USA. Source: http://www.beavertaillight.org/history.html
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Author RoySmith

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23 September 2017

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current19:44, 24 September 2017Thumbnail for version as of 19:44, 24 September 20172,415 × 3,978 (6.73 MB)RoySmithUser created page with UploadWizard

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