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Discovery of the principle of the telescope, 17th century (1863). Artist: Unknown Stock Photo - Alamy
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Galileo's first telescopes; 17th century, in the Institute and Museum of the History of Science, Florence. [1000x1500] : r/ArtefactPorn
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Stargazing in the 17th century: Dutch archaeologists discover the OLDEST working telescope in the world | Daily Mail Online
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A telescope from the first half of the seventeenth century – A scientific instrument made of ivory | Die Welt der Habsburger
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TELESCOPE OF GALILEO GALILEI - 17th CENTURY. Location: MUSEO DE HISTORIA DE LA CIENCIA. Florenz. ITALIA. - SuperStock
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