Keywords: South Dakota class battleships;H81481.jpg Photo NH 81481 Sixteen-inch 50 Caliber Mark 2 Mod 1 Gun Barrel On display in East Willard Park Washington Navy Yard D C in October 1974 This gun is Number 111 built at the Washington Navy Yard in 1922 for planned installation on the abortive South Dakota BB 49-54 class battleships and Lexington CC 1-6 class battle cruisers Note railway trucks supporting the gun barrel The two sixteen-inch projectiles displayed alongside the gun are inert shells fired by USS New Jersey into San Clemente Island California during shore bombardment practice in 1968 U S Naval Historical Center Photograph http //www history navy mil/photos/usnshtp/bb/bb49cl htm 1974-10 PD-USGOV-MILITARY-NAVY PD-USGov-Military-Navy 16 inch/50 Mark 2 - 3 naval gun South Dakota class battleships 1920 Gun barrels Black and white photographs |