Keywords: USS Ohio (BB-12) 12-inch 40 cal guns.jpeg 12 /40 caliber gun USS Ohio BB-12 12 /40 guns of the ship's forward gun turret photographed circa 1907-1908 Note Sailors strolling on deck; bell mounted on the pilothouse face; and 3-pounder guns mounted on the superstructure PD-USGov-Military-Navy |