Hong Kong
Now showing: Hong Kong - Postage stamps (1862 - 2024) - 1 stamps.
2016
The 57th International Mathematical Olympiad - Honk Kong, China
6. July WM: None Design: Carl Cheng Chi Ming Perforation: 14
![[The 57th International Mathematical Olympiad - Honk Kong, China, type ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Hong-Kong/Postage-stamps/2012-b.jpg)
