Assertion: artillery's gun | /r/HasProperty | seven 16-inch m1919 guns
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text: The 16-inch guns were one 16-inch gun M1895 on a disappearing carriage, seven 16-inch M1919 guns (one on a disappearing carriage), four 16-inch M1920 howitzers, and ten 16"/50 caliber Mark 2 guns (including some Mark 3 guns), the last taken from weapons produced for South Dakota-class battleships and Lexington-class battlecruisers cancelled by the Washington Naval Treaty.