HMS Ajax 1912

HMS Ajax - Note the paintwork on turret 'A'
This was for other ships in the formation to know the aiming angle when engaging targets.

HMS Ajax was the third of four King George V-class dreadnought battleships built for the Royal Navy in the early 1910s. After commissioning in 1913, she spent the bulk of her career assigned to the Home and Grand Fleets. Aside from participating in the failed attempt to intercept the German ships that had bombarded Scarborough, Hartlepool and Whitby in late 1914, the Battle of Jutland in May 1916 and the inconclusive Action of 19 August, her service during World War I generally consisted of routine patrols and training in the North Sea.

After the war, Ajax was assigned to the Mediterranean Fleet, where she took part in the Allied intervention in the Russian Civil War in the Black Sea in 1919–1920. The ship was deployed to Turkish waters during the Chanak Crisis of September–October 1922. Ajax was placed in reserve in 1924 before being sold for scrap two years later in accordance with the terms of the Washington Naval Treaty.

HMS Ajax in Malta 1919