Avianca 4,17,21

Colombia

4,17,21:

• glossy paper
• open gussets
• straight cut

          21: nothing printed in the gussets

            4: manufacturer in the right gusset:

                                   Lamyflex 2 N.J. 08 04

          17: manufacturer in the left gusset:

                                   Lamyflex 1 C.V. 03 05