Now showing: Switzerland - Postage stamps (1910 - 1919) - 1 stamps.
1913
PRO JUVENTUTE
1. prosinec WM: 2 Sheetsize: 50 Design: Eugène Grasset Engraving: Jean Sprenger Perforation: 12 x 11½
![[PRO JUVENTUTE, type U]](https://www.stampworld.com/media/catalogue/Switzerland/Postage-stamps/U-s.jpg)
