British stamps overprinted M.E.F. (Middle East Forces) were used from 1943 to 1948 after the area was captured by the British during World War II.

From 1 July 1948 stamps overprinted "B.M.A. TRIPOLITANIA" were used

Cyrenaica enjoyed a brief period of internal autonomy in 1949-51 when the British authorities recognised Amir Moammed Idris Al-Senussi as Emir of Cyrenaica , which ended on 24 December 1951 when Cyrenaica, Tripolitania and Fezzan were unified as theKingdon of Libya. Definitive and postage due stamps were issued in 1950. After unification, stamps of Libya were used  

Cyrenaica 1950 Set of 13 SG136-148 V.F MNH & VLMM

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