现在展示: 美国 - (通用)邮票 (1950 - 1959) - 13 邮票.
15. 一月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 200th Anniversary of The Birth of Betsy Ross, 1860-1932, 类型 RQ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RQ-s.jpg)
15. 一月 窗口管理器: 空缺 设计: Charles Chickering 雕版: Matthew Fenton 筛孔: 11 x 10½
![[The 50th Anniversary of The 4-H Clubs, 类型 RR]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RR-s.jpg)
28. 二月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 125th Anniversary of Baltimore & Ohio Railroad Charter, 类型 RS]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RS-s.jpg)
4. 三月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 50th Anniversary of the American Automobile Association, 类型 RT]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RT-s.jpg)
4. 四月 窗口管理器: 空缺 筛孔: 11 x 10½
![[NATO - North Atlantic Treaty Organization, 类型 RU]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RU-s.jpg)
15. 五月 窗口管理器: 空缺 筛孔: 11 x 10½
![[Grand Coulee Dam, 类型 RV]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RV-s.jpg)
13. 六月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 175th Anniversary of the Arrival of Marquis de Lafayette, 类型 RW]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RW-s.jpg)
11. 八月 窗口管理器: 空缺 筛孔: 10½ x 11
![[The 25th Anniversary of the Mount Rushmore Memorial, 类型 RX]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RX-s.jpg)
6. 九月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 100th Anniversary of Civil Engineering, 类型 RY]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RY-s.jpg)
11. 九月 窗口管理器: 空缺 筛孔: 11 x 10½
![[Women in Armed Services, 类型 RZ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RZ-s.jpg)
11. 九月 窗口管理器: 空缺 筛孔: 11 x 10½
![[The 500th Anniversary of the Gutenberg Bible, 类型 SA]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/SA-s.jpg)
4. 十月 窗口管理器: 空缺 筛孔: 11 x 10½
![[Newspaper Boys, 类型 SB]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/SB-s.jpg)
21. 十一月 窗口管理器: 空缺 筛孔: 11 x 10½
![[International Red Cross, 类型 SC]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/SC-s.jpg)