Containers, generally rectangular and shaped like a box, incorporating a translucent screen illuminated from within, typically used for tracing or for viewing or displaying transparencies and films such as slides and x-rays, or for the shadowless illumination of small objects for photography or another purpose; portable light tables. (Project Fotografie) https://data.cultureelerfgoed.nl/term/id/cht/1f7c1237-46e8-4a19-986a-192553a7b5ef