Northwest Airlines 1,6,7

USA

Small type: size 11,5 cm x 23,0 cm

1,6:

• paper 
• pointy bottom
• horizontal tab  
• straight cut

          1: width of upper white bar:   14 mm

          6: width of upper white bar:     5 mm 

7:

• glossy paper
  
• pointy bottom
• horizontal tab  
• straight cut