Now showing: United States - Airmail stamps (1980 - 1989) - 3 stamps.

1988 The 350th Anniversary of the New Sweden Settlement

29. March WM: None Perforation: 11

[The 350th Anniversary of the New Sweden Settlement, type CL]
No. Type D Mint Condition Unused Used Letter/FDC
108 CL 44(C) 0.79 - 0.26 1.05 USD  Info
1988 Avaition Pioneers - Samuel Pierpont Langley, 1834-1906

14. May WM: None Perforation: 11

[Avaition Pioneers - Samuel Pierpont Langley, 1834-1906, type CM]
No. Type D Mint Condition Unused Used Letter/FDC
109 CM 45(C) 0.52 - 0.26 1.05 USD  Info
1988 Avaition Pioneers - Igor Sikorsky, 1889-1972

23. June WM: None Perforation: 11

[Avaition Pioneers - Igor Sikorsky, 1889-1972, type CN]
No. Type D Mint Condition Unused Used Letter/FDC
110 CN 36(C) 0.52 - 0.26 2.10 USD  Info
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