United Kingdom: Distinguished Service Medal

Ribbon: Blue with a double white central stripe.

Instituted: 14 October 1914.

Awarded: To other ranks of the Royal Navy or Royal Marines for distinguished conduct in the face of the enemy.

Post-nominal letters: DSM

George V Type 1 1914-1930
George V Type 2 1930-1937	Sorry - no picture of obverse	Sorry - no picture of reverse
George VI Type 1 1938-1949
George VI Type 2 1949-1953	Sorry - no picture of obverse	Sorry - no picture of reverse
Elizabeth II Type 1 1953-1957	Sorry - no picture of obverse	Sorry - no picture of reverse
Elizabeth II Type 2 1957-date	Sorry - no picture of obverse	Sorry - no picture of reverse