Viser nu Schweiz - Post frimærker (1910 - 1919) - 1 frimærker.
1913
PRO JUVENTUTE
1. december VM: 2 Arkstørrelse: 50 Design: Eugène Grasset Gravering: Jean Sprenger Perforeringer: 12 x 11½
![[PRO JUVENTUTE, type U]](https://www.stampworld.com/media/catalogue/Switzerland/Postage-stamps/U-s.jpg)
