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| View Original: | Fresnel lens, 5th order, used in Jones Point lighthouse, 1800s - The Lyceum - Alexandria, Virginia - DSC03500.JPG (3648x5472) | |||
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| Keywords: Fresnel lens, 5th order, used in Jones Point lighthouse, 1800s - The Lyceum - Alexandria, Virginia - DSC03500.JPG en Exhibit in the Lyceum Alexandria Virginia USA This work is old enough so that it is in the public domain Photography was permitted in the museum without restriction 2013-10-02 14 35 10 own Daderot cc-zero Exhibits in the Lyceum Alexandria Virginia Uploaded with UploadWizard Fifth order fresnel lenses Jones Point lighthouse | ||||
