Royal Navy officer rank insignia the Corps also had the unique ranks of colonel second commandant and colonel commandant. Rank insignia are on brown or dark blue shoulder boards in all dresses save for the combat and barracks duty dress uniforms. From 1911 to 1957 the officer corps even included warrant officers and commissioned warrant officers in the same way as the RN. Although the Royal Marines does not officially use the rank of field marshal, the Captain General Royal Marines, the ceremonial head of the corps, wears a field marshal's rank insignia. Royal Navy officer rank insignia Uniforms for naval officers were not authorised
Royal Navy officer rank insignia more recently in "shirt sleeve order". For these commodores first class and above used the same badge as on their epaulettes, and commodores second class and below used their rank rings. From 1926 only commodores had two stars, other captains one. Epaulettes were not worn after 1939. In 2001, the shoulder boards on dress uniforms were changed and are currently: Warrant officers first received their uniforms in 1787. The navigators, surgeons and pursers were commissioned in 1843 and their insignia are described above. In 1865 chief (later commissioned) gunners, boatswains, and carpenters were given a single in ring, with the