Yellowish fluorescence of the small separate glass bowl, indicating the presence of manganese

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Teil von Glasharmonika

Titel
Yellowish fluorescence of the small separate glass bowl, indicating the presence of manganese
Beschreibung
Glass harmonica, around 1800, Deutsches Museum, Inv. No. 7996.
Equipment: Hönle UVAHAND 250 GS handheld UV-lamp, Intensity 250 mW/cm2 UVA).
Rechteinhaber
Photo: Deutsches Museum, S. Mindermann
CC BY-SA 4.0