My bottles of Tramol Turritopsis Nutricula (UV Invisible Ink) arrived, so I immediately inked my Penbbs 494 with it and the results are magical, to put it mildly.
This is on Tomoe River S Kanso paper illuminated by an Emisar D4v2 UV mule flashlight with a ZWB2 filter -- the filter is important, it blocks everything except UV so you don't get a purple-ish cast on the paper. The paper plays a part, too as it is not UV reactive.
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