지금 보여주기: 미국 - 우표 (1940 - 1949) - 5 우표.
10. 5월 WM: 없음 절취선: 11 x 10½
![[Transcontinental Railroad, 유형 OM]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/OM-s.jpg)
22. 5월 WM: 없음 절취선: 11 x 10½
![[The 125th Anniversary of the First Steamship Crossing the Atlantic, 유형 ON]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/ON-s.jpg)
24. 5월 WM: 없음 절취선: 11 x 10½
![[The 100th Anniversary of the First Telegraph Transmitted Message, 유형 OO]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/OO-s.jpg)
27. 9월 WM: 없음 절취선: 11 x 10½
![[Corregidor Island, 유형 OP]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/OP-s.jpg)
31. 10월 WM: 없음 절취선: 11 x 10½
![[The 50th Anniversary of Motion Pictures, 유형 OQ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/OQ-s.jpg)
