Excellent work on this photo. Really good stuff guys.
Just to add my tiny bit. I would agree it is a Rangoon (three engines can just be seen) and therefore 203 squadron at Basra between 1931 and 1935.
If it were a French Rangoon then I would expect it to carry the anchor symbol on the tail, which seems absent from your pic. See below for a French Rangoon with the distinctive tail markings. The French aircraft were sometimes refered to as "Naval Calcuttas".
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