BCP = Bluish coated paper PVA = Polyvinyl alcohol acetate gum
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p214

Bluish coated paper

P214 - 8d vermilion, BCP/PVA, two 4.75mm screen 150 phosphor bands, upright print (Cyl 2) - Deegam PD 9.1.1 - S.G specialised U20 - Stoneham M37 - Concise 738

Two phosphor bands from cylinder 2 [1.7.68]