Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Syria - Pioneer Flight - 1921 (October 5), four surcharged values - 1p/20c in pair, 5p/1fr and 10p/2fr, used on flown cover from Aleppo to Alexandretta, postmarked on arrival, F/VF and rare, Est. $200-$250 , Scott #C4-C6