Now showing: United States - Airmail stamps (1990 - 1999) - 5 stamps.

1991 Aviation Pioneers - Harriet Quimby & Blériot XI Monoplane

27. April WM: None Perforation: 11

[Aviation Pioneers - Harriet Quimby & Blériot XI Monoplane, type CV] [Aviation Pioneers - Harriet Quimby & Blériot XI Monoplane, type CV1]
No. Type D Mint Condition Unused Used Letter/FDC
122 CV 50(C) 0.57 - 0.28 1.14 USD  Info
122A CV1 50(C) 0.57 - 0.28 1.14 USD  Info
1991 William T.Piper

17. May WM: None Perforation: 11

[William T.Piper, type CW]
No. Type D Mint Condition Unused Used Letter/FDC
123 CW 40(C) 0.57 - 0.28 1.14 USD  Info
1991 Antarctic Treaty

21. June WM: None Perforation: 11

[Antarctic Treaty, type CX]
No. Type D Mint Condition Unused Used Letter/FDC
124 CX 50(C) 0.57 - 0.28 1.14 USD  Info
1991 America PUAS - First Americans Crossed over from Asia

12. October WM: None Perforation: 11

[America PUAS - First Americans Crossed over from Asia, type CY]
No. Type D Mint Condition Unused Used Letter/FDC
125 CY 50(C) 0.57 - 0.28 1.14 USD  Info
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