Thesaurus for Graphic Materials 1: Subject Terms Library of Congress. Prints and Photographs Division Graphic Materials, Subject Terms 2007-07-04 2012-08-05 16:16:48 en Armored vesselsBroadsides (Warships)CasementsIron-clad vesselsIronclads For the first armored warships built during the revolution in naval architecture in the second half of the 19th century.
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