Now showing: United States - Postage stamps (1950 - 1959) - 155 stamps.
5. August WM: None Perforation: 11 x 10½
3. September WM: None Perforation: 10½ x 11
22. September WM: None Perforation: 11 x 10½
24. September WM: None Perforation: 10½ x 11
15. December WM: None Perforation: 11 x 10½
11. January WM: None Perforation: 10½ x 11
15. January WM: None Perforation: 10½ x 11
23. February WM: None Perforation: 11 x 10½
23. February WM: None Perforation: 11 x 10½
22. May WM: None Perforation: 10½ x 11
10. June WM: None Sheetsize: 25726 Design: 33027 Perforation: 11 x 10½
14. June WM: None Perforation: 11 x 10½
1. July WM: None Perforation: 11 x 10½
4. July WM: None Perforation: 11
15. August WM: None Perforation: 10½ x 11
31. August WM: None Perforation: 11
6. September WM: None Perforation: 10½ x 11
22. November WM: None Perforation: 11
27. December WM: None Perforation: 10½ x 11
15. March WM: None Perforation: 10½ x 11
17. April WM: None Perforation: 11 x 10½
28. April WM: None Perforation: 11 x 10½
11. May WM: None Perforation: 11 x 10½
31. May WM: None Perforation: 11
12. June WM: None Perforation: 11 x 10½
25. June WM: None Perforation: 10½ x 11
WM: None Perforation: 10½ x 11 and 11
15. August WM: None Perforation: 11 x 10½
27. August WM: None Perforation: 11 x 10½
September WM: None Perforation: 10½ x 11 and 11
22. September WM: None Perforation: 10½ x 11
10. October WM: None Perforation: 11 x 10½
16. October WM: None Perforation: 10½ x 11
27. October WM: None Perforation: 11
25. November WM: None Perforation: 11 x 10½
12. February WM: None Perforation: 10½ x 11
14. February WM: None Perforation: 11 x 10½
25. February WM: None Perforation: 10½ x 11 and 11
1. April WM: None Perforation: 10½ x 11
6. April WM: None Perforation: 11 x 10½
20. April WM: None Perforation: 11 x 10½
30. May WM: None Engraving: Bureau of Engraving and Printing Perforation: 11 x 10½
8. June WM: None Perforation: 11 x 10½
26. June WM: None Perforation: 11
4. July WM: None Perforation: 11
26. August WM: None Perforation: 11