The 50th Anniversary and 13th Congress of International Commission on Large Dams 1979
Rāda: Indija - Pastmarkas - 1979 - The 50th Anniversary and 13th Congress of International Commission on Large Dams - 1 marka.
1979
The 50th Anniversary and 13th Congress of International Commission on Large Dams
29. oktobris SV: Neviens Perforēšana: 13½ x 13
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