"Large Lithophane "birds""
Large format lithophane. Outdoor scene: group of young people on ruins admiring the flight of birds. Size: 15 x 19 cm A lithophane is a thin ceramic plate with a relief whose thickness varies from 1.5 to 4 mm. The porcelain is fired twice at a temperature of 1250 ° C. In normal lighting, there is practically no visible image, but a three-dimensional image is created when a light is placed behind it. Lithophanes became particularly popular in the mid-19th century. Placed in front of a candle, they served as a bedside lamp or were hung in front of a window. mid-19th century https://www.lavalisearlesienne.com/product-page/grande-lithophanie-les-oiseaux 
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