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File:Fort Adams, Newport Neck, Newport, Newport County, RI HABS RI,3-NEWP,54- (sheet 35 of 45).png - Wikimedia Commons
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File:Fort Adams, Newport Neck, Newport, Newport County, RI HABS RI,3-NEWP,54- (sheet 20 of 45).png - Wikimedia Commons
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Rectified photographic exterior elevations of the left bastion casemates, Fort Cumberland (MP/FOC0206) Archive Item - English Heritage(EH):Archive Collection | Historic England
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Amazon.com: Historic Pictoric : Blueprint HABS MD,17-FOWA,5- (Sheet 11 of 27) - Fort Washington, Fort, 13551 Fort Washington Road, Fort Washington Forest, Prince George's County, MD 20in x 16in: Posters & Prints
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Uniforms - 1897 FORTIFICATION Casemate BASTION Abatis REDOUT Trous à loup FORTIFIED CASTLE Antique Print Larousse Gravure
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