Switzerland 1913 Pro juventute

All “Pro juventute” issues are sold at an additional premium, which goes to Benevolent Societies.

Until 1937 these premiums were not shown on the stamps, but were as follows:

2c. for all 3c. franking values
5c. for all 5c.
7 1/2 c. for 10c, 15c. and 20c. values
10c. for all 30c. and 40c. values.

From 1937, the premium appeared on the designs.

The illustration shows the first issue , which was released Dec 1, 913.
1
It showed Helvetia nad the Matterhorn.

Designed by A. Grasset. Perf 1 x 11 1/2.