Iraq 1933 (July 15): The World's first Airmail Letter-card, King Faisal 15 fils slate-blue air-letter form fresh mint, also a rare used example to Austria up-rated with 3 f. green used from Baghdad (H&G FG1).
1933 (July 15): The World's first Airmail Letter-card, King Faisal 15 fils slate-blue air-letter form fresh mint, with diagonal SPECIMEN overprint in red. Rare.