PCP = Phosphor coated paper PVAD = Polyvinyl alcohol acetate dextrin gum
FCP = Fluorescent coated paper PVA = Polyvinyl alcohol acetate gum
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nd35

ND35 - Northern Ireland 15p ultramarine, PCP/PVAD (Cyl 1) (Harrison/photo) - Deegam N150.1.1 - S.G specialised XN44 - Stoneham U42 - Concise NI33

PCP from cylinder 1 [23.7.80]
nd48

ND48 - Northern Ireland 15p light blue, FCP/PVA, 4mm 'SA' phosphor bar right of centre CB (OR) (Questa/litho) - Deegam N150.2.1 - S.G specialised XNL12 - Stoneham U60 - Concise NI40

4mm 'SA' phosphor bar right of centre from cylinders Q1Q1, Q2Q2, Q3Q3, Q4Q4 [28.11.89]