Meritorious Service Medal MSM
The Meritorious Service Medal was instituted on 19 December 1845 for the British Army, to recognise long and meritorious service by warrant officers and non-commissioned officers of the rank of sergeant and above, with a small number of early awards bestowed for gallantry. Recipients were granted an annuity, the amount of which was based on rank.
The Meritorious Service Medal (MSM) is a British medal awarded to sergeants and warrant officers of the British armed forces for long and meritorious service. From 1916 to 1928, eligibility was extended to cover both valuable services by selected other ranks irrespective of length of service, and for gallantry not in the face of the enemy.
Eligibility was widened in December 1977, with the medal now awarded on the same basis to all arms of the British armed forces.