Airmail - U.N. Environmental Conservation Conference, Stockholm 1973
现在展示： 刚果共和国 - （通用）邮票 - 1973 - Airmail - U.N. Environmental Conservation Conference, Stockholm - 1 邮票.
现在展示： 刚果共和国 - （通用）邮票 - 1973 - Airmail - U.N. Environmental Conservation Conference, Stockholm - 1 邮票.
![[Airmail - U.N. Environmental Conservation Conference, Stockholm, 类型 MN]](https://www.stampworld.com/media/catalogue/Congo,-Rep./Postage-stamps/MN-s.jpg)
