Composition of the series:
Regular mail
20c. red
30c. tawny
50c. violetto
1,25 blue L.
1,75 + 1 L. orange
2,75 + 2 L. green olive
Air mail
25c. ocher yellow
50c. tawny
60c. red
1 + 1 L. violetto
5 + 2 green L.
For a total of 11 stamps