Silk Air 1,2,3,4

Singapore

1:

• paper 
• flat base 
• vertical tab
• straight cut
• manufacturer in the right gusset:

2,4,5:

• glossy paper
• flat base
• vertical tab
• zigzag cut
• manufacturer on base:

          2:                                   ELAG 3,5 cm, up, topside down

          4:                                   ELAG 3,5 cm, down

3:

• paper
• flat base
• vertical tab
• zigzag cut
• manufacturer in the right gusset: