Ditunjukkan sekarang: Switzerland - Setem-setem bayaran pos (1849 - 2025) - 1 Setem-setem.
1913
PRO JUVENTUTE
1. December WM: 2 Saiz Helaian: 50 Corak: Eugène Grasset Ukiran: Jean Sprenger Perforasi: 12 x 11½
![[PRO JUVENTUTE, jenis U]](https://www.stampworld.com/media/catalogue/Switzerland/Postage-stamps/U-s.jpg)
