Lufthansa 16,17,25,27,31,41

Germany

16,17,25:   capital letters only

• glossy paper 
• flat base with special fold
  
• horizontal tab

          16: zigzag cut

          17,25: straight cut

                       25: manufacturer on base:

41:

• glossy paper 
• flat base with special fold
  
• horizontal tab
• straight cut

31:

• glossy paper 
• flat base with special fold
  
• horizontal tab
• straight cut

• manufacturer in the left gusset:

27:

• glossy paper 
• flat base with coversheet
• horizontal tab
• straight cut

• manufacturer in the right gusset: