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Optics: crystals exhibiting interference colours. Colour mezzotint by R.H. Digeon, ca. 1868, after J. Silbermann. https://www.rawpixel.com/image/13959241/image-background-person-artFree Image from public domain license
Astronomy: a star map of the night sky in the northern hemisphere, with the names of the constellations. Coloured engraving. https://www.rawpixel.com/image/13957631/image-stars-paper-frameFree Image from public domain license
Geography: two rotating discs (volvelles) showing the times at different places compared to London, and the constellations… https://www.rawpixel.com/image/13957564/image-paper-space-artFree Image from public domain license
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Hemelkaart met de stelsels van Ptolemaeus, Brahe, Copernicus en Descartes (1719 - 1777) by anonymous, Johann Baptista Homann… https://www.rawpixel.com/image/13739732/image-paper-art-patternFree Image from public domain license
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Bay of Tunis Through Porthole of Steamship Fürst Bismark, Tunisia, North Africa, Travel Sketch by Daniel Hudson Burnham… https://www.rawpixel.com/image/8937925/image-cloud-frame-personFree Image from public domain license
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Optics: crystals exhibiting interference colours. Colour mezzotint [] by R.H. Digeon, ca. 1883, after J. Silbermann. https://www.rawpixel.com/image/13953145/image-background-airplane-artFree Image from public domain license
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Music records ephemera border backgrounds drawing technology. https://www.rawpixel.com/image/14487218/music-records-ephemera-border-backgrounds-drawing-technologyView license
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