现在展示： 美国 - （通用）邮票 (1950 - 1959) - 9 邮票.
15. 一月 窗口管理器: 空缺 筛孔: 10½ x 11
![[Pennsylvania Academy of the Fine Arts, 类型 TV]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/TV-s.jpg)
12. 二月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 100th Anniversary of the Land Grant Colleges, 类型 TW]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/TW-s.jpg)
23. 二月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 50th Anniversary of Rotary International, 类型 TX]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/TX-s.jpg)
21. 五月 窗口管理器: 空缺 筛孔: 11 x 10½
![[Armed Forces Reserve, 类型 TY]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/TY-s.jpg)
21. 六月 窗口管理器: 空缺 筛孔: 10½ x 11
![[New Hampshire - The Old Man of the Mountains, 类型 TZ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/TZ-s.jpg)
28. 六月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 100th Anniversary of Soo Locks, 类型 UA]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/UA-s.jpg)
28. 七月 窗口管理器: 空缺 筛孔: 11 x 10½
![[Atoms for Peace, 类型 UB]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/UB-s.jpg)
18. 九月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 200th Anniversary of Fort Ticonderoga, 类型 UC]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/UC-s.jpg)
20. 十二月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 100th Anniversary of Andrew Mellon, 类型 UD]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/UD-s.jpg)
