Composition of the series:
Regular mail
10c. green
20c. red
30c. tawny
50c. violetto
75c. red
1,25 + 1 blue L.
1,75 + 1 red L.
2,55 + 1 L. slate
Air mail
25c. green
50c. tawny
60c. red
1 + 1 L. violetto
5 + 2 L. slate
For a total of 13 stamps
Regular mail
10c. green
20c. red
30c. tawny
50c. violetto
75c. red
1,25 + 1 blue L.
1,75 + 1 red L.
2,55 + 1 L. slate
Air mail
25c. green
50c. tawny
60c. red
1 + 1 L. violetto
5 + 2 L. slate
For a total of 13 stamps