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 1.05 0.78 0.52 - 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 8.37 4.19 4.19 - USD  Info
510 GJ 5C 20.93 12.56 15.70 - USD  Info
509‑510 29.30 16.75 19.89 - 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 1.05 0.78 0.78 - 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 1.05 0.78 0.78 - USD  Info
513 GL 5C 6.28 4.19 2.62 - USD  Info
512‑513 7.33 4.97 3.40 - USD 
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