Airmail - The 100th Anniversary of Bern Convention - Issue of 1974 Overprinted "9 OCTOBRE 1974" and Surcharged 300F 1974
Menampilkan: Kongo, Rep. - Prangko - 1974 - Airmail - The 100th Anniversary of Bern Convention - Issue of 1974 Overprinted "9 OCTOBRE 1974" and Surcharged 300F - 1 prangko.
![[Airmail - The 100th Anniversary of Bern Convention - Issue of 1974 Overprinted "9 OCTOBRE 1974" and Surcharged 300F, Tipe PI]](https://www.stampworld.com/media/catalogue/Congo,-Rep./Postage-stamps/PI-s.jpg)
