Royal Naval Auxiliary Service Long Service Medal SERVICE LONG SERVICE". Recipient's names are impressed upon the edge of the medal in capital letters. The medal is suspended from a dark blue ribbon with a narrow central green stripe. Near the edges are narrow green stripes bordered in white. Royal Naval Auxiliary Service Long Service Medal The Royal Naval Auxiliary Service Long Service Medal was an award of the Royal Naval Auxiliary Service. The medal recognized 12 years of service, with bars being awarded for 12 subsequent years of service. The medal is 36 mm in diameter and made of cupro-nickel. The obverse depicts the crowned effigy of
Distinguished Flying Medal awarded to commissioned officers and Warrant Officers, although the latter could also be awarded the DFM. The decoration ranked below the DFC in order of precedence, between the Military Medal and the Air Force Medal. Recipients of the Distinguished Flying Medal are entitled to use the post-nominal letters "DFM". Although announced in the London Gazette on 3 June 1918, the actual Royal Warrants were not published in the London Gazette until 5 December 1919. In 1979 eligibility for a number of British awards, including the DFM, was extended to permit posthumous awards. Until that time, only the Victoria Cross and