 They armed auxiliary cruisers, dreadnought battleships, ironclads, predreadnought battleships, protected cruisers and torpedo cruisers of the Regia Marina.They saw action aboard ships in the Italo-Turkish War, World War I, Second Italo-Ethiopian War and World War II.Japanese belted cruiser "Chiyoda" launched in 1890 was armed with ten QF 4.7-inch Guns in single mounts, mounted one each in the bow and stern, and four on each side in sponsons.