Thanks for your contribution Vicaf.
I like the scout designs but the others look as though they were designed in a hurry.
agreed, I find a lot of these geological proximity issues similar, I have a feeling (unsubstantiated) that there were interests afoot, to secure printing rights around the area 1965 to 1970 ish.
Rockets, Space travel, Paintings etc& etc.
I note some were printed in Turkey, which was surprise, I was thinking perhaps Clive Harold Feigenbaum.
Michel has 161 stamp issues for the Maha Sultanate.
(You gotta love the Germans)
The Maha Sultanate of Qishu (Quishu?) and Socotra
The Stamp Atlas
Stuart Rossiter & John Flower 1986