http://www.marinelink.com/news/northrop-grumman-employees-help-identify-uss-monitor-artifacts/northrop-grumman-employees-help-identify-uss-monitor-artifacts324166
Northrop Grumman Employees Help Identify USS Monitor Artifacts
identify artifacts recovered from the wreck of the USS Monitor. off the coast of Cape Hatteras, N.C. Atmospheric Administration (NOAA).