Helderse Postzegelhandel : Stamps for sale - Switzerland
Now showing: Switzerland - Postage stamps (1849 - 2024) - 2 stamps.
28. November WM: None Sheetsize: 50 Design: Walter Wehinger Engraving: Courvoisier S.A. Perforation: 11¾
![[Pro Juventute - Birds, type AIB]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/Postage-stamps/AIB-s.jpg)
28. November WM: None Sheetsize: 50 Design: Walter Wehinger Engraving: Courvoisier S.A. Perforation: 11¾
![[Pro Juventute - Birds, type AIB]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Switzerland/Postage-stamps/AIB-s.jpg)