Aero Airlines

Took me a couple of minutes to realize what this airline's logo was: look at the white bit. not the blue.

Thanks to Fred Courtay (2007)

Aero Asia

"Friendly people, Friendly service" says this bag. Don't disturb the cabin attendants if you use this bag, though: "After use fold top and secure, dispose under seat". Where presumably the cleaning crew will find it

Aeroclub Zwickau

A bag intended for German gliders -- as shown in the illustration. Surprisingly, not a lightweight -- it weighs 16 grams when empty (compared with the standard 10 g). A trapezoid base-fold makes this bag unique -- almost: Yangon Airways has been known to use the same type of fold.

Aeroclub Zwickau (poem)

Truly unique: features a 15-verse German poem in tiny type on the reverse.