Zobrazujú sa: Prieplavová zóna - Poštové známky (1904 - 1978) - 5 známky.
1929 -1931
No. 70 & 71 Overprinted
WM: nikto Perforácia: 11
![[No. 70 & 71 Overprinted, typ Z]](https://www.stampworld.com/media/catalogue/Canal-Zone/Postage-stamps/Z-s.jpg)
![[No. 70 & 71 Overprinted, typ Z2]](https://www.stampworld.com/media/catalogue/Canal-Zone/Postage-stamps/Z2-s.jpg)
1929
No. 79 & 71 Overprinted
31. december WM: nikto Perforácia: 10
![[No. 79 & 71 Overprinted, typ AA]](https://www.stampworld.com/media/catalogue/Canal-Zone/Postage-stamps/AA-s.jpg)
![[No. 79 & 71 Overprinted, typ AA1]](https://www.stampworld.com/media/catalogue/Canal-Zone/Postage-stamps/AA1-s.jpg)
