U.N. Environmental Conservation Conference, Stockholm 1972
现在展示： 纽约联合国总部 - （通用）邮票 - 1972 - U.N. Environmental Conservation Conference, Stockholm - 2 邮票.
现在展示： 纽约联合国总部 - （通用）邮票 - 1972 - U.N. Environmental Conservation Conference, Stockholm - 2 邮票.
![[U.N. Environmental Conservation Conference, Stockholm, 类型 EZ]](https://www.stampworld.com/media/catalogue/UN-New-York/Postage-stamps/EZ-s.jpg)
![[U.N. Environmental Conservation Conference, Stockholm, 类型 EZ1]](https://www.stampworld.com/media/catalogue/UN-New-York/Postage-stamps/EZ1-s.jpg)
