"-7"^^ . . . "16"^^ . . "484"^^ . "The 16 inch Coastal Defense Gun M1919 was a large artillery piece installed to defend the United States' major seaports between 1920 and 1946."@en . . "United States"@en . "yes"@en . . "1920"^^ . . . "50"^^ . . . . "yes"@en . . "M1919 Barbette, fixed"@en . . "HE;"@en . "16"^^ . "16\"/50 caliber M1919 gun"@en . . "215"^^ . "Coastal Artillery"@en . "The 16 inch Coastal Defense Gun M1919 was a large artillery piece installed to defend the United States' major seaports between 1920 and 1946."@en . "16.0"^^ . .