International post congress in Paris 1963 1963
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1963
International post congress in Paris 1963
7. May WM: None Sheetsize: 50 Design: J. Malvaux Engraving: Jean De Bast Perforation: 11½
![[International post congress in Paris 1963, type ABW]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Belgium/Postage-stamps/ABW-s.jpg)
