1954 United Nations Technical Assistance Program Air Mail Issue
C78-81
Details
Issue date | |
Designer | |
Printing method | |
Printer | |
Paper | |
Perforation | |
Sheet size | |
Subjects |
Specimens, proofs and essays
Progressive proofs
Mini sheets
Varieties
- Imperforate
- Imperforate colors shifted
Further reading
- "American missionary on Liberian UN stamp" / p. 20 / Journal of the Liberian Philatelic Society / Oct-Dec 2007
- "Airs of the Month" / pp. 78-9 / The Airpost Journal / Blank, Alton J. / Dec 1954