Syria: 1929 (30 December). Small airmail envelope to Switzerland opened out for display franked with 10p Aeroplane overprinted issue of 1926, 4p on 0p25 pictorial and 15p Aeroplane surcharged on 25p of 1929 stamps tied by Alep datestamps and next day Beyrouth transit cds. Sg. 195, 213, 228
