Syrian Arab Republic 877-879
A set of three stamps
issued by the Syrian Arab Republic in 1980 in observance of the Second
International History of Arabic Sciences Symposium held in Aleppo,
Syria that year, has an Arabic astrolabe as a common theme.
Syrian Arab Republic 802
On another S. A. R. stamp,
issued in 1978,
is an Islamic Astrolabe (misspelled "Astrulabe" ?).