지금 보여주기: 미국 - 우표 (1950 - 1959) - 155 우표.
27. 8월 WM: 없음 절취선: 10½ x 11
![[Petroleum industry, 유형 WK]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WK-s.jpg)
14. 9월 WM: 없음 절취선: 11 x 10½
![[Dental Health, 유형 WL]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WL-s.jpg)
29. 9월 WM: 없음 절취선: 10½ x 11 and 11
![[Champion of Liberty - Ernst Reuter, 유형 WM]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WM-s.jpg)
![[Champion of Liberty - Ernst Reuter, 유형 WN]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WN-s.jpg)
3. 12월 WM: 없음 절취선: 10½ x 11
![[Dr. Ephraim McDowell, 유형 WO]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/WO-s.jpg)
