Lithophanes: Translucent Porcelain Pictures Revealed by Light

Lithophanes are thin, unglazed porcelain panels with images carved in varying thicknesses so that when held up to a light source, the variations in translucency create a detailed picture with tonal gradations resembling a photograph. Invented in Paris in 1827 and patented by Baron Paul de Bourgoing, lithophanes became enormously popular throughout Europe and America from the 1830s through the 1890s. They were produced by many of the finest European porcelain factories, including Meissen, KPM Berlin, and the Paris factories, and used as window panels, lamp shades, night lights, steins, cups, and decorative plaques.

Identification and Makers

Major lithophane producers and their identifying characteristics:

• KPM Berlin (Konigliche Porzellan-Manufaktur): The most prolific producer; marked with the KPM scepter mark and impressed numbers; generally the finest quality
• Meissen: Crossed swords mark; high-quality production but less common than KPM
• PPM (Plaue Porzellan Manufaktur): Marked "PPM"; large production of lithophane panels
• French factories: Various Paris makers; typically unmarked or with incised numbers
• American: Produced by the Union Porcelain Works and others, though less common

Lithophanes bear impressed mold numbers on the back that identify the specific image. Reference lists matching numbers to images exist for KPM and other major producers.

Types and Forms

• Window panels: Rectangular panels designed to be viewed against daylight
• Lamp shades: Cylindrical or conical shades that display multiple images when illuminated from within
• Night lights/fairy lights: Small lithophane panels mounted in warming stands with candles
• Stein panels: Lithophane images set into the bottoms of beer steins, visible when the stein is drained
• Cup and saucer bases: Images in the bottoms of tea and coffee cups
• Plaques and frames: Mounted in decorative frames for display

Auction Price Ranges

Condition Factors

Lithophanes are fragile, thin porcelain, and condition is critical. Cracks, chips, and repairs are visible when the piece is backlit, making damage impossible to hide. Even hairline cracks show as dark lines against the illuminated image. Repairs using adhesives may block light transmission and are readily apparent. The surface should be smooth and free from chips along the edges. Original mounting hardware (frames, stands) adds value. Warping, which can occur during firing, is a manufacturing characteristic and not considered damage. Check for replaced or mismatched panels in multi-panel lamp shades.

Collecting Tips

KPM lithophanes represent the highest quality and widest variety of subjects, making them the focus for most serious collectors. View all lithophanes against a light source before purchasing, as damage that is invisible when examined normally becomes immediately apparent when backlit. Subjects range from religious and literary scenes to portraits, landscapes, and occasionally erotic images, with the latter commanding premiums due to their novelty value. Matching sets of panels for windows or room dividers are rare and valuable. Lamp shades with four or more panels are dramatic display pieces when illuminated. The technology has experienced a modern revival through 3D printing, but original 19th-century examples are distinguished by their porcelain material, impressed factory marks, and period-appropriate subjects. Night light holders with original warming stands are particularly charming and functional display pieces.