British Occupation Of Italian Cols. (Palestine). 1943. Registered Air Mail envelope addressed to Tripoli, Libya bearing French Algeria Yvert 165, 1f carmine (block of eight) tied by Mostaganem/ Oran date stamp '14th May 43' with registered label and 'Controle' label in yellow tied by oval 'Ouvert/ Par/ L' Autorite Militaire' routed via Palestinewith 'Opened by Examiner/ KK/ 38171' (black on white) label tied by framed British Occupation of Tripolitania 'Crown/ Passed ZA/ 43' censor cachet in violet and boxed '15' hand-stamp with Poste Aerian/ Tripolitania arrival '3rd June 43' . Great item, a very interesting routing via Palestine, why ?