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
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.