Now showing: United States - Postage stamps (1847 - 2024) - 6852 stamps.
2. June WM: None Perforation: 11 x 10½
![[American women, type XC]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XC-s.jpg)
4. July WM: None Perforation: 11
![[New American Flag with 50 Stars, type XD]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XD-s.jpg)
19. July WM: None Perforation: 11 x 10½
![[Pony express, type XE]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XE-s.jpg)
28. August WM: None Design: Carl Bobertz Perforation: 10½ x 11
![[Employ the Handicapped, type XF]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XF-s.jpg)
29. August WM: None Perforation: 10½ x 11
![[World Forest Congress, type XG]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XG-s.jpg)
16. September WM: None Sheetsize: 1 Perforation: 11
![[Mexican Independence, type XH]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XH-s.jpg)
28. September WM: None Design: Gyo Fujikawa Perforation: 11
![[United States-Japan Treaty of Amity and Commerce, type XI]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XI-s.jpg)
8. October WM: None Perforation: 10½ x 11 and 11
![[Champion of Liberty - Jan Paderewski, type XJ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XJ-s.jpg)
![[Champion of Liberty - Jan Paderewski, type XK]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XK-s.jpg)
10. October WM: None Perforation: 10½ x 11
![[In memorial of Senator Robert A.Taft, type XL]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XL-s.jpg)
15. October WM: None Design: Arnold J. Copeland Perforation: 11 x 10½
![[Wheels of freedom, type XM]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XM-s.jpg)
18. October WM: None Design: Charles T. Coiner Perforation: 11
![[Boy's clubs of America Movement, type XN]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XN-s.jpg)
20. October WM: None Perforation: 11
![[First Automated Post Office, type XO]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XO-s.jpg)
26. October WM: None Perforation: 10½ x 11 and 11
![[Champion of Liberty - Baron Gustaf Mannerheim, type XP]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XP-s.jpg)
![[Champion of Liberty - Baron Gustaf Mannerheim, type XQ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XQ-s.jpg)
1. November WM: None Design: H. Edward Oliver Perforation: 11
![[Camp fire girls, type XR]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XR-s.jpg)
2. November WM: None Perforation: 10½ x 11 and 11
![[Champion of Liberty - Giuseppe Garibaldi, type XS]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XS-s.jpg)
![[Champion of Liberty - Giuseppe Garibaldi, type XT]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XT-s.jpg)
5. November WM: None Perforation: 10½ x 11
![[In memorial of Senator Walter F. George, type XU]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XU-s.jpg)
25. November WM: None Design: Charles R. Chickering Perforation: 10½ x 11
![[Andrew Carnegie, type XV]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XV-s.jpg)
6. December WM: None Perforation: 10½ x 11
![[In memorial of John Foster Dulles, type XW]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XW-s.jpg)
15. December WM: None Perforation: 11 x 10½
![[Echo I - Communications for peace, type XX]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XX-s.jpg)
26. January WM: None Design: Arnold Copeland, with Ervine Metzl and William H. Buckley Perforation: 10½ x 11
![[Champion of Liberty - Mahatma Gandhi, type XY]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XY-s.jpg)
![[Champion of Liberty - Mahatma Gandhi, type XZ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/XZ-s.jpg)
2. February WM: None Design: Rudolph Wendelin Perforation: 11
![[Range conservation, type YA]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YA-s.jpg)
3. February WM: None Perforation: 10½ x 11
![[Horace Greely, type YB]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YB-s.jpg)
12. April WM: None Design: Charles R. Chickering Perforation: 11
![[The 100th Anniversary of the Civil War - Firing on Fort Sumter, type YC]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YC-s.jpg)
10. May WM: None Perforation: 11
![[The 100th anniversary of Kansas Statehood, type YH]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YH-s.jpg)
11. July WM: None Perforation: 11 x 10½
![[Senator George W.Norris, type YI]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YI-s.jpg)
20. August WM: None Perforation: 11 x 10½
![[Naval aviation, type YJ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YJ-s.jpg)
4. September WM: None Perforation: 10½ x 11
![[Workmen's compensation, type YK]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YK-s.jpg)
4. October WM: None Perforation: 11
![[Frederic Remington, type YL]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YL-s.jpg)
10. October WM: None Perforation: 10½ x 11
![[Republic of China, type YM]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YM-s.jpg)
6. November WM: None Perforation: 10½ x 11
![[Naismith-basketball, type YN]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YN-s.jpg)
28. December WM: None Design: Alfred Charles Parker Perforation: 11
![[Nursing, type YO]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YO-s.jpg)
WM: None Perforation: 11
![[The 50th Anniversary of New Mexico Statehood, type YP]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YP-s.jpg)
WM: None Design: James M. Chemi and Jimmie E. Ihms Perforation: 11
![[The 50th Anniversary of Arizona Statehood, type YQ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YQ-s.jpg)
20. February WM: None Sheetsize: 50 Design: Charles R. Chickering Engraving: Image - Richard M. Bower et Lettre - Howard F. Sharpless Perforation: 11
![[Project mercury, type YR]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YR-s.jpg)
30. March WM: None Design: Charles R. Chickering Perforation: 11
![[Malaria eradication, type YS]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YS-s.jpg)
7. April WM: None Sheetsize: 4 Design: Noel Sickles Perforation: 11
![[The 100th Anniversary of the Civil War - Battle of Shiloh, type YD]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YD-s.jpg)
11. April WM: None Design: Charles R. Chickering Perforation: 10½ x 11
![[Charles Evans Hughes, type YT]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YT-s.jpg)
25. April WM: None Sheetsize: 4 Perforation: 11
![[Seattle World's Fair, type YU]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YU-s.jpg)
30. April WM: None Sheetsize: 1 Design: Norman Todhunter Perforation: 11
![[The 150th Anniversary of Louisiana Statehood, type YV]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YV-s.jpg)
20. May WM: None Sheetsize: 4 Design: Charles R. Chickering Perforation: 11 x 10½
![[The homestead act, type YW]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YW-s.jpg)
24. July WM: None Design: Ward Brackett Perforation: 1 x 10½
![[Girl scout jubilee, type YX]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YX-s.jpg)
28. July WM: None Design: Victor S. McCloskey, Jr. Perforation: 11 x 10½
![[Senator Brien McMahon, type YY]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YY-s.jpg)
31. August WM: None Design: Robert Geissmann Perforation: 11 x 10½
![[Apprenticeship, type YZ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/YZ-s.jpg)
16. September WM: None Perforation: 11
![[Sam Rayburn, type ZA]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/ZA-s.jpg)
23. October WM: None Sheetsize: 4 Design: H. M. Sanborn Perforation: 11
![[Dag hammerskjold, type ZB]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/ZB-s.jpg)
11. November WM: None Design: Jim Crawford Perforation: 11
![[Christmas stamp, type ZD]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/ZD-s.jpg)