Mono And Stereo Graphoscope In Blackened Wood Decorated With Scrolls And Foliage

Large and beautiful mono and stereo Graphoscope in blackened wood decorated with foliage and foliage. Size 27x18cm. The first Graphoscopes appeared in the middle of the 19th century. They are used to improve the visualization of photographs on paper. They have a magnifying lens. The proposed model is quite rare due to its size. Indeed its use is specifically reserved for the visualization of business cards, a format introduced by Disderi in the 1850s. Relief photography is as old as "flat" photography (photography as it is widespread today) . The invention of the relief image even predates that of photography, since in 1838, Wheatstone, a member of the Royal Society of London, invented a mirror device restoring relief (as a reminder, the official date of the The invention of photography dates back to 1839. Furthermore, the principle of obtaining an image in relief had already been established in Antiquity by Euclid and taken up by Leonardo da Vinci in 1484.
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