දැන් පෙන්වන්නේ: එක්සත් ජනපදය - තැපැල් මුද්දර (1950 - 1959) - 13 මුද්දර .
15. January WM: කිසිවක් නැත සිදුර: 11 x 10½
![[The 200th Anniversary of The Birth of Betsy Ross, 1860-1932, වර්ගය RQ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RQ-s.jpg)
15. January WM: කිසිවක් නැත මෝස්තරය: Charles Chickering කැටයම: Matthew Fenton සිදුර: 11 x 10½
![[The 50th Anniversary of The 4-H Clubs, වර්ගය RR]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RR-s.jpg)
28. February WM: කිසිවක් නැත සිදුර: 11 x 10½
![[The 125th Anniversary of Baltimore & Ohio Railroad Charter, වර්ගය RS]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RS-s.jpg)
4. March WM: කිසිවක් නැත සිදුර: 11 x 10½
![[The 50th Anniversary of the American Automobile Association, වර්ගය RT]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RT-s.jpg)
4. April WM: කිසිවක් නැත සිදුර: 11 x 10½
![[NATO - North Atlantic Treaty Organization, වර්ගය RU]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RU-s.jpg)
15. May WM: කිසිවක් නැත සිදුර: 11 x 10½
![[Grand Coulee Dam, වර්ගය RV]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RV-s.jpg)
13. June WM: කිසිවක් නැත සිදුර: 11 x 10½
![[The 175th Anniversary of the Arrival of Marquis de Lafayette, වර්ගය RW]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RW-s.jpg)
11. August WM: කිසිවක් නැත සිදුර: 10½ x 11
![[The 25th Anniversary of the Mount Rushmore Memorial, වර්ගය RX]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RX-s.jpg)
6. September WM: කිසිවක් නැත සිදුර: 11 x 10½
![[The 100th Anniversary of Civil Engineering, වර්ගය RY]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RY-s.jpg)
11. September WM: කිසිවක් නැත සිදුර: 11 x 10½
![[Women in Armed Services, වර්ගය RZ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/RZ-s.jpg)
11. September WM: කිසිවක් නැත සිදුර: 11 x 10½
![[The 500th Anniversary of the Gutenberg Bible, වර්ගය SA]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/SA-s.jpg)
4. October WM: කිසිවක් නැත සිදුර: 11 x 10½
![[Newspaper Boys, වර්ගය SB]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/SB-s.jpg)
21. November WM: කිසිවක් නැත සිදුර: 11 x 10½
![[International Red Cross, වර්ගය SC]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/SC-s.jpg)
