wd71
PCP = Phosphor coated paper PVAD = Polyvinyl alcohol acetate dextrin gum
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WD71 - Wales 20.5p ultramarine, PCP/PVAD (Questa/litho) - Deegam W205.1.1 - S.G specialised XWL36 - Stoneham WA53 - Concise W53

From sheets cylinders Q1, Q2 [27.4.83]