Now showing: United States - Postage stamps (1920 - 1929) - 6 stamps.
26. květen WM: Žádný Perforation: 11
![[The 150th Anniversary of Washington's Encampment at Valley Forge, type GG]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/GG-s.jpg)
13. srpen WM: Žádný Perforation: 11 x 10½
![[The 150th Anniversary of the Discovery of Hawaii by Captain Cook, type 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, type GJ]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/GJ-s.jpg)
20. říjen WM: Žádný Perforation: 11 x 10½
![[The 150th Anniversary of the Battle of Monmouth, type GH]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/GH-s.jpg)
12. prosinec WM: Žádný Perforation: 11
![[Aeronautics Conference Issue, type GK]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/GK-s.jpg)
![[Aeronautics Conference Issue, type GL]](https://www.stampworld.com/media/catalogue/United-States/Postage-stamps/GL-s.jpg)
Now showing: United States - Postage stamps (1920 - 1929) - 6 stamps.
26. květen WM: Žádný Perforation: 11
13. srpen WM: Žádný Perforation: 11 x 10½
20. říjen WM: Žádný Perforation: 11 x 10½
12. prosinec WM: Žádný Perforation: 11