Now showing: Sri Lanka - Postage stamps (1972 - 2024) - 3 stamps.
6. September WM: None Perforation: 14½
![[The 20th Commonwealth Parliamentary Conference, Colombo, type M]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sri-Lanka/Postage-stamps/M-s.jpg)
25. September WM: None Perforation: 14½
![[The 15th Anniversary of the Death of Prime Minister Bandaranaike, 1899-1959, type N]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sri-Lanka/Postage-stamps/N-s.jpg)
9. October WM: None Perforation: 13½
![[The 100th Anniversary of U.P.U., type O]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Sri-Lanka/Postage-stamps/O-s.jpg)
Now showing: Sri Lanka - Postage stamps (1972 - 2024) - 3 stamps.
6. September WM: None Perforation: 14½
25. September WM: None Perforation: 14½
9. October WM: None Perforation: 13½