1974
Airmail – The 100th Anniversary of U.P.U. – Colombian Birds


[Airmail - The 100th Anniversary of U.P.U. - Colombian Birds, type ALP]


[Airmail - The 100th Anniversary of U.P.U. - Colombian Birds, type ALQ]


[Airmail - The 100th Anniversary of U.P.U. - Colombian Birds, type ALR]


[Airmail - The 100th Anniversary of U.P.U. - Colombian Birds, type ALS]

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