Ditunjukkan sekarang: Zon Terusan - Setem-setem bayaran pos (1904 - 1978) - 1 Setem-setem.
1948
The 25th Anniversary of Establishment of Canal Zone Biological Area
17. April WM: Tiada Perforasi: 11
![[The 25th Anniversary of Establishment of Canal Zone Biological Area, jenis BF]](https://www.stampworld.com/media/catalogue/Canal-Zone/Postage-stamps/BF-s.jpg)
