Naval Long Service and Good Conduct Medal (1848) the second version of the medal with its narrower suspender that was introduced in 1874, the ribbon dimensions were changed to 32 millimetres wide and Navy blue, with 6½ millimetres wide white edges. The first version of the medal has the effigy of Queen Victoria on the obverse and was designed by William Wyon, the chief engraver at the Royal Mint from 1828 until his death. The reverse has the image of HMS "Victory" that would remain virtually unchanged through all subsequent versions of the medal. The details of the recipient were either engraved or, after 1877, impressed around 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