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bronce s. xix - telescopio reflector astronómic - Acquista Altri strumenti ottici antichi su todocoleccion
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An engraving depicting a refracting telescope built by Joseph von Fraunhofer (1787-1826) a German physicist. Dated 19th Century Stock Photo - Alamy
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Amazon.com : Bresser 4660910 Classic 60/900 EQ Sky Refractor Telescope with Accessories - White : Electronics
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