This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
monochrome LCDIGPPMSCA ampquotCityampquot Class ironclad gunboats off Cairo Illinois in with barges moored in the foreground. These ships are from left to right USS Baron de Kalb USS Cincinnati and USS Mound City . Boats are tied astern of Baron de Kalb and Cincinnati. Also at NHHC as NH A. Courtesy of the Library of Congress.