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UPU HQ joint issue

  • Colnect-1009-486-New-headquarters-building-of-the-U-PU-Bern.jpg
  • Colnect-998-015-New-headquarters-building-of-the-U-PU-Bern.jpg
  • Colnect-998-016-New-headquarters-building-of-the-U-PU-Bern.jpg
Short desc: UPU HQ


2 participants:
Issue Issuer Stamps Dates
UPU HQ Madagascar 1 1970
UPU HQ Niger 2 1970