This image was acquired from
wikimedia. 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:
US Navy NL Senior Chief Cryptologic Technician Collection James Eaton explains to boy scouts from Troop on the capabilities of the dualmounted .caliber machine gun. en San Diego Oct Senior Chief Cryptologic Technician Collection James Eaton operations department leading chief petty officer aboard guidedmissile cruiser USS Princeton