PCP = Phosphor coated paper PVAD = Polyvinyl alcohol acetate dextrin gum
FCP = Fluorescent coated paper
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Yellowish green

wd33

WD33 - Wales 12p yellowish green, PCP/PVAD (Cyl 2) (Harrison/photo) - Deegam W120.1.1 - S.G specialised XW44 - Stoneham WA42 - Concise W32

From cylinder 2 [23.7.80]
wd37

Emerald green

left_band_i1

WD37 - Wales 12p emerald green, FCP/PVAD, 4mm 'SA' phosphor inset left band (I1) (Cyls Q1Q1, Q2Q2) (Questa/litho) - Deegam W120.2.1 - S.G specialised XWL2 - Stoneham WA58 - Concise W36

4mm 'SA' phosphor inset left band from cylinders Q1Q1, Q2Q2 [7.1.86]
s6_i1

WD38 - Wales 12p emerald green, FCP/PVAD, 4mm 'SA' phosphor inset left bar (S6 + I1) (Cyls Q3Q3, Q4Q4) (Questa/litho) - Deegam W120.2.2 - S.G specialised XWL3 - Stoneham WA58a

4mm 'SA' phosphor inset left bar from cylinders Q3Q3, Q4Q4 [15.7.86]