declared in abeyance with the outbreak of war in 1939, but was not formally abolished. Used on several ceremonial occasions after the war (such as the coronation of Elizabeth II), it was replaced in 1960 with the current Ceremonial Day Dress. A version of Royal Navy Full Dress, complete with epaulettes and cocked hat, is still worn by the Lord Warden of the Cinque Ports, but the current incumbent (Lord Boyce) wears his Royal Navy ceremonial day coat in lieu of this. It was last worn by Sir Robert Menzies during his tenure as Lord Warden from 1966 to 1978. Round jacket Colloquially known as 'the jacket', this was originally a more practical 'working' version of the full dress coat that was improvised by officers cutting off the tails of a spare undress coat. This practice was already informally widespread amongst officers at sea but in the 1825 regulations, the round jacket was finally given official sanction. It was only worn at sea, and was worn with either a peaked cap or a round (similar to a top) hat. It was abolished for all commissioned officers in 1891, but cadets and midshipmen still wore it for formal occasions until it was finally abolished for them in 1951. Frock Coat Dress This was introduced in 1847 and was divided into several categories: Frock Coat with epaulettes; which was worn with the bicorn hat and medals, Frock Coat without epaulettes, which was worn with the peaked cap. It became official 'working dress' in 1858. It was altered in 1933 by having only four buttons (instead of five) each side, three of which were to be buttoned. This enabled longer lapels to be incorporated, reflecting civilian fashions of the time. Frock Coat Dress was (like Full Dress) placed in abeyance and 'landed' in 1939, and although not formally abolished was not worn until it was finally abolished in 1949. A modified version of this uniform is still worn; usually with peaked cap and without epaulettes, by the Master and Elder Brethren of Trinity House. Battledress This was not introduced until comparatively late in World War II, in contrast to its Army and RAF equivalents. From 1941, Army battledress was approved for use by Royal Navy personnel until 1943, when a Navy Blue version of battledress was introduced to be used only by the Royal Navy. Battledress stock from WW2 was still being worn