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
Air Force Medal the Air Force Cross (AFC), which was awarded to commissioned officers and Warrant Officers, although the latter could also be awarded the AFM. It ranked below the AFC in order of precedence, between the Distinguished Flying Medal and the Queen's Gallantry Medal. Although the new award was announced in the London Gazette on 3 June 1918, the actual Royal Warrants were not published in the London Gazette until 5 December 1919. A bar, worn on the ribbon, could be awarded to recognise a second award of the Air Force Medal. Recipients are entitled to use the post-nominal letters "AFM". The