Οπτικά παιχνίδια - Optical Toy. Tea warmer - 1850-1900 - Ολλανδία - Lithophanie

Νineteen αιώνα teapot warmer with regtangular shaped lithophane, with rural images. All sides are in good shape , no cracks or repairs. Size 12.5 diameter cm. Overall size 16 x 12 cm. Oil burner not tested, for pictures images iluminated with a candle. Lithophanes became especially popular in the mid-nineteenth century made by companies such as Wedgwood in England, Meissen in Dresden and P.P.M. in Prussia. A Lithophane is a thin ceramic plate or bowl with a relief, varying in thickness from 1.5 to 4 mm. The porcelain is fired twice in a temperature of 1250 degrees C.