An underwater view of both gun ports in the turret of the US Navy (USN) Ironclad USS MONITOR, taken during Phase II of the Monitor 2001 Expedition

The original finding aid described this photograph as: country: atlantic ocean (aoc) scene major command shown: mdsu-2 scene camera operator: phc eric j. Tilford, usn release status: released to public. Collection: National Archives at College Park - Still Pictures.