Airmail - The 25th Anniversary of the Hermann Oberth Society 1976
Rāda: Paragvaja - Pastmarkas - 1976 - Airmail - The 25th Anniversary of the Hermann Oberth Society - 1 marka.
1976
Airmail - The 25th Anniversary of the Hermann Oberth Society
20. augusts SV: Neviens Lapas izmērs: 1 iegravēt: Lito. Nacional. Porto. Portugal. Perforēšana: 14½
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