6,7,9:

Bulgaria Air 6,7,9

Bulgaria

 

6:

paper bag 

flat base with coversheet

straight cut 

 

7:

glossy paper bag 

flat base with coversheet

in the left:

straight cut 

 

6,7:

9: "Bulgaria Air" at both sides

glossy paper bag 

flat base with coversheet

in the left:

straight cut