150mm 6" (5.9") Naval Gun Naval. Unclear if this gun was Japanese in manufacture, or built by Sir W. G. Armstrong Whitworth & Co Ltd in the United Kingdom and sold to Japan prewar.
Delivered to the Imperial Japanese Navy (IJN) and emplaced at Rabaul.
Taken to the Kokopo War Museum, where it is displayed along the museum's perimeter fence, parallel to the road.
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August 7, 2018