Events - The 100th Anniversary of the Birth of Othmar Ammann - Esperanto Congress, Luzern, Basel Airport 1979
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1979
Events - The 100th Anniversary of the Birth of Othmar Ammann - Esperanto Congress, Luzern, Basel Airport
21. 二月 窗口管理器: 空缺 纸张规格 : 50 设计: Walter Hättenschweiler 雕版: courvoisier 筛孔: 11¾
![[Events - The 100th Anniversary of the Birth of Othmar Ammann - Esperanto Congress, Luzern, Basel Airport, 类型 ARZ]](https://www.stampworld.com/media/catalogue/Switzerland/Postage-stamps/ARZ-s.jpg)
![[Events - The 100th Anniversary of the Birth of Othmar Ammann - Esperanto Congress, Luzern, Basel Airport, 类型 ASA]](https://www.stampworld.com/media/catalogue/Switzerland/Postage-stamps/ASA-s.jpg)
![[Events - The 100th Anniversary of the Birth of Othmar Ammann - Esperanto Congress, Luzern, Basel Airport, 类型 ASB]](https://www.stampworld.com/media/catalogue/Switzerland/Postage-stamps/ASB-s.jpg)
![[Events - The 100th Anniversary of the Birth of Othmar Ammann - Esperanto Congress, Luzern, Basel Airport, 类型 ASC]](https://www.stampworld.com/media/catalogue/Switzerland/Postage-stamps/ASC-s.jpg)
