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 1.16 0.87 0.58 - 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 9.29 4.65 4.65 - USD  Info
510 GJ 5C 23.23 13.94 17.42 - USD  Info
509‑510 32.52 18.59 22.07 - 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 1.16 0.87 0.87 - 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 1.16 0.87 0.87 - USD  Info
513 GL 5C 6.97 4.65 2.90 - USD  Info
512‑513 8.13 5.52 3.77 - USD 
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