wd15_17
OCP = Original coated paper PVA = Polyvinyl alcohol acetate gum
FCP = Fluorescent coated paper
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WD15 - Wales 5p reddish violet, OCP/PVA, two 4.75mm B3 phosphor bands (Cyl 3) (Harrison/photo) - Deegam W50.1.1 - S.G specialised XW29 - Stoneham WA20 - Concise W19

Original coated paper from cylinder 3 [7.7.71]

WD17 - Wales 5p reddish violet, FCP/PVA, two 4.75mm B3 phosphor bands (Cyl 3) (Harrison/photo) - Deegam W50.2.1 - S.G specialised XW30 - Stoneham WA27

Fluorescent coated paper from cylinder 3 [6.73