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Telescopio Rifrattore Carl Zeiss, Obiettivo D. 92mm F/16 Doppietto Fraunhofer (fine 800) - Unitronitalia
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7 Fraunhofer telescope of the Berlin Observatory (identical to the one... | Download Scientific Diagram
![An engraving depicting a refracting telescope built by Joseph von Fraunhofer (1787-1826) a German physicist. Dated 19th Century Stock Photo - Alamy An engraving depicting a refracting telescope built by Joseph von Fraunhofer (1787-1826) a German physicist. Dated 19th Century Stock Photo - Alamy](https://c8.alamy.com/comp/RJJXGJ/an-engraving-depicting-a-refracting-telescope-built-by-joseph-von-fraunhofer-1787-1826-a-german-physicist-dated-19th-century-RJJXGJ.jpg)
An engraving depicting a refracting telescope built by Joseph von Fraunhofer (1787-1826) a German physicist. Dated 19th Century Stock Photo - Alamy
![Ilustración de El Gran Refractor Dorpat De Joseph Von Fraunhofer Construido En 1824 En El Observatorio Ilustración de El Gran Refractor Dorpat De Joseph Von Fraunhofer Construido En 1824 En El Observatorio](https://media.istockphoto.com/id/1439778913/es/vector/el-gran-refractor-dorpat-de-joseph-von-fraunhofer-construido-en-1824-en-el-observatorio.jpg?s=612x612&w=is&k=20&c=PPfGTiSsKAFknN7autw5HxoNprkCENNZMZPSTXZIlio=)