Rāda: Panamas kanāla zona - Pastmarkas (1920 - 1929) - 1 marka.
1926
Liberty Bell- US Stamp Overprinted "CANAL/ZONE", Distance between Lines 5 mm
4. jūlijs SV: Neviens
![[Liberty Bell- US Stamp Overprinted "CANAL/ZONE", Distance between Lines 5 mm, veids O]](https://www.stampworld.com/media/catalogue/Canal-Zone/Postage-stamps/O-s.jpg)
