Overprinted C.I.S 1920
Now showing: Slesvig - Official stamps - 1920 - Overprinted C.I.S - 4 stamps.
1920
Overprinted C.I.S
26. January WM: 4 Sheetsize: 50 Design: August Carstens Perforation: 14 x 14½
![[Overprinted C.I.S, type B]](https://www.stampworld.com/media/catalogue/Slesvig/Official-stamps/B-s.jpg)
![[Overprinted C.I.S, type B3]](https://www.stampworld.com/media/catalogue/Slesvig/Official-stamps/B3-s.jpg)