of the two Australian covers, one is a Special FDI cover postmarked Sydney Airport 5th August , 2008. , with one $2 stamp and a special metal Airbus Decal attached over the Aviation on the front cover. The back cover has Info and the number 10,165 of 15000.
Retail was $9,95.
The other Australian cover is the Airbus 380 FFC. Postmarked 20 October, 2008, was a special PO offer with a unique blue Airmail cachet, and two $2 stamps cancelled Tullamarine. Lots of info on the back cover.
Also 2 Panama covers. one a 5c Postal card with printed stamps, a 5c and a 1c green up rate.The other Panama cover is a 1928 Homage to Lindbergh. or Lindberghs Flying Tour with a SG 223 with a 5c blue Aeroplane Air mail stamp cancelled at Colon.
The Philippine cover may not be airmail, it is the 9th Anniv of the Republic of the Philippines.