Tripolitania

Tripolitania was the northwestern province of Libya as an Italian colony.
 * Stamps were being issued since 1912 for the whole of Libya. In October 1923, separate issues for Tripolitania were released. This was Italy's Propaganda of the Faith set, overprinted TRIPOLITANIA.
 * That was followed by other Italian commemoratives similarly overprinted.
 * In 1926, the Colonial Institute issues were released inscribed TRIPOLITANIA.
 * Both overprinted sets and specific issues for the province continued until 1934, when Cyrenaica, Tripolitania and Fezzan came under a single administration.

 File:Tripol Manzoni.jpg|1924 50c Manzoni. File:Trip colonial.jpg|5+40c 1926 Colonial Institute semipostal. File:Trip Virgil.jpg|1930 5+2.50L Virgil semipostal. File:Trip palm huts.jpg|1934 10c view. File:Trip rev.jpg|50c revenue. 

British occupation
 File:BMA Trip.jpg|1948 2 M.A.L. value. File:BMA Trip due.jpg|1948 2 M.A.L. postage due. File:BA Trip.jpg|1950 10 M.A.L. definitive. File:BA Trip 240mal.jpg|1950 240 M.A.L. definitive. File:BATrip 2 4MAL.jpg||1951 4 M.A.L. value. File:Ba Trip 120MAL.jpg|1951 120 M.A.L. value. File:Trip revenue .jpg|5MAL revenue. 
 * In late 1942, Allied forces invaded and occupied Tripolitania. Libya was once again divided, with Tripolitania under British military control. See: Middle East Forces.
 * In 1948, British definitives and postage dues were surcharged B.M.A. TRIPOLITANIA in military authority lire (MAL).
 * In 1950, British definitives and postage dues were surcharged B.A. TRIPOLITANIA in military authority lire (MAL).
 * In 1951, British stamps in new colors/designs were similarly surcharged.

Tripolitania was once again united with Cyrenaica and Fezzan as the Kingdom of Libya in 1951.