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
Queen Victoria Diamond Jubilee Medal stripes towards each edge. Holders of the 1887 medal who qualified were awarded a bar inscribed '1897' and surmounted by a crown, to be attached to the ribbon of the existing medal. The medal for mayors and provosts is a lozenge, , bearing a trefoil pattern, with a circular centre that depicts the portrait of the older Queen on the obverse, with the young Queen on the reverse. The ribbon follows that of the standard medal, with the colours reversed. Queen Victoria Diamond Jubilee Medal The Diamond Jubilee Medal was instituted in 1897 by Royal Warrant as a British decoration.