pc88_88a

15p Ultramarine

PCP1 = Phosphorised coated paper (Matt)

PVAD (Dextrin) = Polyvinyl alcohol acetate dextrin gum

PCP2 = Phosphorised coated paper (Glossy)

 

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PC88a - 15p ultramarine, PCP (Experimental coating) /PVAD (Cyl 1) (Harrison/photo) - Deegam 150.1.1

PCP matt paper from cylinder 1 [15.8.79]

PC88 - 15p ultramarine, PCP1/PVAD (Cyl 1) (Harrison/photo) - Deegam 150.1.2 - S.G specialised U231 - Concise X947

PCP1 matt paper from cylinder 1 [4.80]

PC91 - 15p ultramarine, PCP2/PVAD (Cyls 1, 2) (Harrison/photo) - Deegam 150.1.2a - Stoneham M357

PCP2 glossy paper from cylinders 1 and 2 [10.80]