现在展示： 美国 - 航空邮票 (1990 - 1999) - 2 邮票.
1999
Landscape - Self-Adhesive
窗口管理器: 空缺 筛孔: Rouletted 11
![[Landscape - Self-Adhesive, 类型 XAA]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/XAA-s.jpg)
1999
Landscape - Self-Adhesive
30. 七月 窗口管理器: 空缺 设计: Ethel Kessler 筛孔: Rouletted 11
![[Landscape - Self-Adhesive, 类型 XAB]](https://www.stampworld.com/media/catalogue/United-States/Airmail-stamps/XAB-s.jpg)
