Montre maintenant: États-Unis - Timbres-Poste (1847 - 2024) - 5 Timbres-poste.
10. mai WM: Aucun Perforation: 11 x 10½
![[Transcontinental Railroad, type OM]](https://swmedia-4cd6.kxcdn.com/media/catalogue/United-States/Postage-stamps/OM-s.jpg)
22. mai WM: Aucun Perforation: 11 x 10½
![[The 125th Anniversary of the First Steamship Crossing the Atlantic, type ON]](https://swmedia-4cd6.kxcdn.com/media/catalogue/United-States/Postage-stamps/ON-s.jpg)
24. mai WM: Aucun Perforation: 11 x 10½
![[The 100th Anniversary of the First Telegraph Transmitted Message, type OO]](https://swmedia-4cd6.kxcdn.com/media/catalogue/United-States/Postage-stamps/OO-s.jpg)
27. septembre WM: Aucun Perforation: 11 x 10½
![[Corregidor Island, type OP]](https://swmedia-4cd6.kxcdn.com/media/catalogue/United-States/Postage-stamps/OP-s.jpg)
31. octobre WM: Aucun Perforation: 11 x 10½
![[The 50th Anniversary of Motion Pictures, type OQ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/United-States/Postage-stamps/OQ-s.jpg)