Visar nu: USA - Postfrimärken (1920 - 1929) - 6 frimärken.
26. maj WM: Inga Perforering: 11
![[The 150th Anniversary of Washington's Encampment at Valley Forge, Typ GG]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/GG-s.jpg)
13. augusti WM: Inga Perforering: 11 x 10½
![[The 150th Anniversary of the Discovery of Hawaii by Captain Cook, Typ GI]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/GI-s.jpg)
![[The 150th Anniversary of the Discovery of Hawaii by Captain Cook, Typ GJ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/GJ-s.jpg)
20. oktober WM: Inga Perforering: 11 x 10½
![[The 150th Anniversary of the Battle of Monmouth, Typ GH]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/GH-s.jpg)
12. december WM: Inga Perforering: 11
![[Aeronautics Conference Issue, Typ GK]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/GK-s.jpg)
![[Aeronautics Conference Issue, Typ GL]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/GL-s.jpg)
