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Item no. S346 (stamp)
Type: stamp
Country: Republic of Chad (Republique du Tchad)
Date of issue: 2004
Catalog number:
A souvenir sheet with stamp honoring GABRIEL LIPPMANN (1845 – 1921), French scientist awarded with Nobel Prize in physics (1908) “for his method of reproducing colors photographically, based on the phenomenon of light interference” (the method found no practical use).
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