press/media, magazines, "Le Petit Journal", Paris, 12. volume, number 576, illustrated supplement, Sunday 1 December 1901, illustration, "Famous inventions, the semaphore", ,

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Photo credit: © INTERFOTO / History / Alamy / Afripics
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Keywords: 1900s, 20th, building, century, communication, france, historic, historical, invention, journal, magazine, magazines, media, number, optical, paris, people, petit, press, republic, technology, telegraphy, volume