Wellington transport Arabia 1948

I have just become aware of these 2 photos from Mike Morton’s collection. They are of a Wellington taken at Riyan, Oman in February 1948. It was apparently used to transport geologists during oil exploration. The nose turret is faired over, like a T10, and I see a roundel under the wing. There is something written on the cockpit side, but I cannot make it out. Can anyone throw any light on which Wellingtons were used for this job at that time?

Laurence
(Late PS: this should be Riyan, Aden (now in Yemen) as we found later in the thread)