Regimentally Rare Korean War Campaign Medal Group of Four to the Military Provost Staff Corps, General Service medal 1918-62, GVI, with 2 clasps, Palestine 1945-48 and Malaya, ‘19042531 SGT D.W. PROBYN M.P.S.C.’, EIIR Korea medal, ‘19042531 SGT D.W. PROBYN M.P.S.C.’, United Nations Korea medal, General Service medal, EIIR, with clasps South Arabia and Northern Ireland, ‘19042531 S SGT D.W. PROBYN M.P.S.C.’, with anodised EIIR cap badge and matching collar badges. onald William Probyn was born in Kirkee, India in 1929 and died on 15th March 2019.orea Medals to the M.P.S.C. are extremely rare as only 15 members qualified for the campaign medal. he Military Provost Staff Corps, formed in 1901, is one of the smallest Corps in the British Army. Its task is to provide the guards for military prisons. Before being accepted into the Corps Probyn would have already been qualified to be a sergeant, been interviewed by two Boards, including one by a Brigadier, and would have to attend a 13-week Induction Course.