Abu Dhabi: 1967 (6 March). General Geophysical (Bahamas) Ltd. imprinted cover to United States franked with two pairs and a strip of eight 50f new currency with bars obliterated on 50n.p. Mountain Gazelle and deposed Shaikh portrait tied by ABU DHABI TRUCIAL STATES datestamps. Very scarce if not unique multiple on cover. Sg. 20
