wd49
PCP = Phosphor coated paper PVAD = Polyvinyl alcohol acetate dextrin gum
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WD49 - Wales 15.5p pale violet, PCP/PVAD (Questa/litho) - Deegam W115.1.1 - S.G specialised XWL12 - Stoneham WA50 - Concise W42

From cylinders Q1, Q2, Q3, Q4, Q5, Q6 [24.2.82]