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Next| Block Island Southeast Lighthouse's 1929 First Order Fresnel lens Plan Page 1 |
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| Library of Congress, Prints & Photographs Division, HAER RI,5-NESH,1--50 |
| Block Island Southeast Lighthouse's 1929 First Order Fresnel lens Plan Page 1 |
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| Library of Congress, Prints & Photographs Division, HAER RI,5-NESH,1--50 |
© 2004 R. Holmes. Do not reproduce any part of this website without permission of the author.