现在展示： 美国 - （通用）邮票 (1950 - 1959) - 18 邮票.
12. 二月 窗口管理器: 空缺 筛孔: 10½ x 11
![[Lincoln memorial issue, 类型 VP]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/VP-s.jpg)
![[Lincoln memorial issue, 类型 VQ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/VQ-s.jpg)
14. 二月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 100th Anniversary of Oregon Statehood, 类型 WA]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WA-s.jpg)
25. 二月 窗口管理器: 空缺 筛孔: 10½ x 11 and 11
![[Champion of Liberty - José de San Martin, 类型 WB]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WB-s.jpg)
![[Champion of Liberty - José de San Martin, 类型 WC]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WC-s.jpg)
1. 四月 窗口管理器: 空缺 筛孔: 10½ x 11
![[The 10th Anniversary of NATO, 类型 WD]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WD-s.jpg)
![[The 50th Anniversary of the Arctic Journey of Robert Peary & USS Nautilus First Submerged Transit Beneath the North Pole, 类型 WE]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WE-s.jpg)
20. 四月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 17th Congress of the International Chamber of Commerce, Washington DC, 类型 WF]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WF-s.jpg)
30. 五月 窗口管理器: 空缺 雕版: Bureau of Engraving and Printing 筛孔: 11 x 10½
![[Statue in Lincoln Memorial, 类型 VS]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/VS-s.jpg)
8. 六月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 100th Anniversary of Discovery of Silver at Comstock Lode, Nevada, 类型 WG]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WG-s.jpg)
26. 六月 窗口管理器: 空缺 筛孔: 11
![[St. Lawrence Seaway, 类型 WH]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WH-s.jpg)
4. 七月 窗口管理器: 空缺 筛孔: 11
![[New American Flag with 49 Stars, 类型 WI]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WI-s.jpg)
26. 八月 窗口管理器: 空缺 筛孔: 11
![[Soil conservation, 类型 WJ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WJ-s.jpg)
27. 八月 窗口管理器: 空缺 筛孔: 10½ x 11
![[Petroleum industry, 类型 WK]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WK-s.jpg)
14. 九月 窗口管理器: 空缺 筛孔: 11 x 10½
![[Dental Health, 类型 WL]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WL-s.jpg)
29. 九月 窗口管理器: 空缺 筛孔: 10½ x 11 and 11
![[Champion of Liberty - Ernst Reuter, 类型 WM]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WM-s.jpg)
![[Champion of Liberty - Ernst Reuter, 类型 WN]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WN-s.jpg)
3. 十二月 窗口管理器: 空缺 筛孔: 10½ x 11
![[Dr. Ephraim McDowell, 类型 WO]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WO-s.jpg)
