"Safe Photographic Laboratory Lamp"
Lamp for photographic laboratory. Ruby christal fireplace (red cylindrical glass) mounted on a brass frame In the middle of the 19th century, brass oil lamps became widespread and specialized, candle lamp, wall lamp, flashlight and lamp for photographic development with glasses colored red which appeared as early as 1885. These safe red glass sleeves are quite rare, they allow the development of photos by providing a little light without altering the chemistry.https://www.lavalisearlesienne.com/product-page/lampe-pour-laboratoire-photographique-inactinique
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