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 Sheetsize: 1 Engraving: Lithographie Perforation: 13¼
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