CAAC 1,3,15,16,21

China

1,15: texts left lined

            1: paper

          15: glossy paper

• pointy bottom
• straight cut

3,16: texts not left lined

            3: paper

         16: glossy paper

• light blue print
• pointy bottom
• straight cut

21:  without CAAC

• paper
• pointy bottom
• straight cut
• manufacturer in the left gusset: