"A Japanese fortified 'pill box.' The howitzer has had the breech blown out as the position was abandoned." From "Darkroom Soldier": "Ending in a Pill Box. Another in his series on destroyed Japanese armament, Hill records here a Japanese 75 mm…
"A grounded 'Sugar Charlie.' North New Guinea coast area with a few strafing splashes. Sugar Charlie was name used to describe small Japanese powered barges used for carrying supplies"