| − | ''A triple-mounted domestic battleship main gun prototyped by Kure Naval Arsenal's Artillery Division.<br>At a little over 16 inches, this 41 cm gun was the largest battleship gun in the world until the introduction of the "Yamato-class" 46 cm guns.<br>When equipped on the Nagato-class battleships, they would have had firepower and accuracy far exceeding that of any "Big 7" from the other great powers.
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