The International Year of Light and Light-based Technologies 2015 2015
Now showing: Sierra Leone - Postage stamps - 2015 - The International Year of Light and Light-based Technologies 2015 - 1 stamps.
2015
The International Year of Light and Light-based Technologies 2015
24. July WM: None Perforation: 13¼
![[The International Year of Light and Light-based Technologies 2015, type ]](https://www.stampworld.com/media/catalogue/Sierra-Leone/Postage-stamps/6387-b.jpg)
