2016-06-28

A3B flour-phosphor ... dull and bright phosphors


Douglas Myall in DGR118 has offered new classification for dull phosphors that are appearing on several values : 1p 2p 5p 10p 20p 1£ 1st and 2nd values





Q. printers are varying, the sequencing cylinder?
I have tried to rationalize dull and bright phosphors

(as PUI , phosphor under ink)

IUP ,   Iriodin® under phosphor


my survey of values has revealed a spectrum of flour-phosphors :
very brite / brite A2B / dull A3B / very dull / none MFP

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