現在展示： 美國 - （通用）郵票 (1940 - 1949) - 9 郵票.
11. February 窗口管理器: 空缺 篩孔: 10½ x 11
![[The 100th Anniversary of the Birth of Thomas A.Edison, 類型 PJ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/PJ-s.jpg)
10. April 窗口管理器: 空缺 篩孔: 11 x 10½
![[Joseph Pulitzer, 類型 PK]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/PK-s.jpg)
17. May 窗口管理器: 空缺 篩孔: 11 x 10½
![[The 100th Anniversary of United States Postage Stamps, 類型 PL]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/PL-s.jpg)
19. May 窗口管理器: 空缺 篩孔: Imperforated
![[The 100th Anniversary of United States Postage Stamps, 類型 ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/0756-b.jpg)
9. June 窗口管理器: 空缺 篩孔: 11 x 10½
![[Physicians of America, 類型 PN]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/PN-s.jpg)
24. July 窗口管理器: 空缺 篩孔: 11 x 10½
![[The 100th anniversary of the Utah Settlement, 類型 PO]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/PO-s.jpg)
21. October 窗口管理器: 空缺 篩孔: 11 x 10½
![[The 150th Anniversary of U.S. Frigate "Constitution", 類型 PP]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/PP-s.jpg)
5. December 窗口管理器: 空缺 篩孔: 10½ x 11
![[Everglades National Park, 類型 PQ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/PQ-s.jpg)
