Naval Long Service and Good Conduct Medal (1830) with the effigy of Queen Victoria on the obverse, the image of a three-masted man-of-war on the reverse and a new Navy blue ribbon with white edges. Naval Long Service and Good Conduct Medal (1830) The Naval Long Service and Good Conduct Medal (1830) of the United Kingdom was introduced in 1830 and ratified by King William IV in 1831. It could only be awarded to selected Navy ratings after altogether 21 years of service and good conduct. The medal remained in use until 1847, when it was replaced by the Naval Long Service and Good Conduct Medal (1848). The
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