"POSTE PAR AVION" purple overprint on previous stamp (Syria 1920)

01 December (Syria ) within release Airmail 1920 goes into circulation Stamp "POSTE PAR AVION" purple overprint on previous stamp face value 1 Syrian piastre

Stamp "POSTE PAR AVION" purple overprint on previous stamp in catalogues
Michel:	Mi:SY 132
Yvert et Tellier:	Yt:SY-FR PA1

Stamp is vertical format.

Also in the issue Airmail 1920:

• Stamp - "POSTE PAR AVION" purple overprint on previous stamp face value 1;
• Stamp - "POSTE PAR AVION" purple overprint on previous stamp face value 5;
• Stamp - "POSTE PAR AVION" purple overprint on previous stamp face value 10;
• Stamp - Type Merson overprinted and Syrian surcharge face value 10;
• Stamp - Type Semeuse overprint and Syrian surcharge face value 1;
• Stamp - Type Semeuse overprint and Syrian surcharge face value 5;