Sri Lanka
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2021
The 100th Anniversary of the Faculty of Science of the University of Colombo
24. November Wz: Keine Zähnung: 13¼
![[The 100th Anniversary of the Faculty of Science of the University of Colombo, Typ BTA]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sri-Lanka/Postage-stamps/BTA-s.jpg)
