The Distinguished Service Medal was a military decoration awarded until 1993 to personnel of the Royal Navy and members of the other services, and formerly to personnel of other Commonwealth countries
Obverse and reverse of the medal
Distinguished Service Medal Obverse
George VI (1st type) 'INDIAE IMP' (1938–49)
George VI (2nd type) without 'INDIAE IMP' (1949–52)
The Distinguished Service Cross is a third-level military decoration awarded for gallantry during active operations against the enemy at sea to officers; and, since 1993, ratings and other ranks of th
Distinguished Service Medal (United Kingdom)
…standard required to receive the Victoria Cross or the Conspicuous Gallantry Medal. The equivalent decoration for Officers and Warrant Officers was the Distinguished Service Cross (DSC). The DSM ranked below the DSC in order of precedence, between the George Medal and the Military Medal after those medals were established in 1940…
Distinguished Service Cross, Obverse, 1937 47