Now showing: United States - Postage stamps (1920 - 1929) - 6 stamps.

1928 The 150th Anniversary of Washington's Encampment at Valley Forge

26. May WM: None Perforation: 11

[The 150th Anniversary of Washington's Encampment at Valley Forge, type GG]
No. Type D Mint Condition Unused Used Letter/FDC
508 GG 2C 1.14 0.85 0.57 - USD  Info
1928 The 150th Anniversary of the Discovery of Hawaii by Captain Cook

13. August WM: None Perforation: 11 x 10½

[The 150th Anniversary of the Discovery of Hawaii by Captain Cook, type GI] [The 150th Anniversary of the Discovery of Hawaii by Captain Cook, type GJ]
No. Type D Mint Condition Unused Used Letter/FDC
509 GI 2C 9.10 4.55 4.55 - USD  Info
510 GJ 5C 22.74 13.65 17.06 - USD  Info
509‑510 31.84 18.20 21.61 - USD 
1928 The 150th Anniversary of the Battle of Monmouth

20. October WM: None Perforation: 11 x 10½

[The 150th Anniversary of the Battle of Monmouth, type GH]
No. Type D Mint Condition Unused Used Letter/FDC
511 GH 2C 1.14 0.85 0.85 - USD  Info
1928 Aeronautics Conference Issue

12. December WM: None Perforation: 11

[Aeronautics Conference Issue, type GK] [Aeronautics Conference Issue, type GL]
No. Type D Mint Condition Unused Used Letter/FDC
512 GK 2C 1.14 0.85 0.85 - USD  Info
513 GL 5C 6.82 4.55 2.84 - USD  Info
512‑513 7.96 5.40 3.69 - USD 
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