Seen from the radio-gunner's position, a surveillance flight over an island in Likiep Atoll reveals only palm trees and a peaceful lagoon.  Note the empty mount for the .50 caliber machine gun in the left foreground of the photograph.  In order to increase the aircraft's patrol range, these guns were removed, along with the Plexiglas window.

Photograph: Marine Bombing Squadron Six-Thirteen (via William A. Kehr)