1956/57, wm 'St. Edward's crown' 1½ a. on 1½ d. In horizontal pair (separated at bottom) with 1952/54, ½ a. on ½ d., used on commercial airmail cover from "BAHRAIN .. FE 57" to Doha, Qatar; the envelope with some marginal transportation faults, the pair in very fine condition (partly lifted for inspection of watermark). One of the greatest rarities of the British agencies in Arabia; only one further copy of this rare stamp has been recorded from Bahrain (also on cover). Certificate David Brandon (1997)