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Herschel's Telescope 1789./Great Nsir William Herschel's reflecting telescope Built 1789 at Slough England Engraving 19th Century Art Print (60.96 X 91.44 CM) : Amazon.de: Home & Kitchen
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Sir William Herschel Great 40 foot telescope reflecting telescopes 1785 1789 Observatory House Slough England primary mirror Stock Photo - Alamy
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