DG25.4.4 (FCP, CB B3) and DG20.4.4c (FCP, Thin Paper, CB B3 “Jet-phosphor”) under Leuchtturm short-wave uv-lamp.
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2½p FCP B3 and B3 Jet SW UV

Added to Phosphorescence4 years ago

DG25.4.4 (FCP, CB B3) and DG20.4.4c (FCP, Thin Paper, CB B3 “Jet-phosphor”) under Leuchtturm short-wave uv-lamp.