In 1862, the USS Monitor sank off Cape Hatteras. Experts used plaster models of the skulls of two sailors to create facial reconstructions that could provide clues to their identities.
Marine archaeologist James Delgado, right, studies the facial reconstructions of two skulls found in the wreckage of the USS Monitor. The National Oceanic and Atmospheric Administration unveiled them in Washington on March 6. In the background are three sailors in period dress from the USS Constellation. Bill O'Leary/The Washington Post Buy Photo