現在展示： 美國 - （通用）郵票 (1930 - 1939) - 7 郵票.
18. February 窗口管理器: 空缺 篩孔: 10½ x 11
![[Golden Gate exposition, 類型 LU]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/LU-s.jpg)
1. April 窗口管理器: 空缺 篩孔: 10½ x 11
![[New York's world's fair, 類型 LV]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/LV-s.jpg)
30. April 窗口管理器: 空缺 篩孔: 11
![[Washington's Inauguration, 類型 LW]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/LW-s.jpg)
12. June 窗口管理器: 空缺 篩孔: 11 x 10½
![[The 100th Anniversary of Baseball, 類型 LX]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/LX-s.jpg)
15. August 窗口管理器: 空缺 篩孔: 11
![[The 25th Anniversary of the Panama Canal, 類型 LY]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/LY-s.jpg)
25. September 窗口管理器: 空缺 篩孔: 10½ x 11
![[Printing, 類型 LZ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/LZ-s.jpg)
2. November 窗口管理器: 空缺 篩孔: 11 x 10½
![[The 50th Anniversary of the Statehood of North Dakota, South Dakota, Washington & Montana, 類型 MA]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/MA-s.jpg)
