Paper varieties viewed under long wave light

MCP = Milky coated paper PVA = Polyvinyl alcohol acetate gum
BCP = Bluish coated paper  
OCP = Original coated paper
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p231

Gum Arabic - Milky coated paper

P231 - 1/- dull violet, MCP/Arabic, two 4.75mm screen 150 phosphor bands, upright print (Cyl 3) - Deegam PD 12.1.1 - S.G specialised U25(1) - Stoneham M10 - Concise 742

Two phosphor bands from cylinder 3 [5.6.67]
p239

Gum Arabic - Bluish coated paper

P235 - 1/- bright violet, BCP/Arabic, two 4.75mm screen 150 phosphor bands, upright print (Cyl 11) - Deegam PD 12.1.1a - S.G specialised U25(2) - Concise 742Ea

Two phosphor bands from cylinder 11 [6.68]
p231

PVA gum - Bluish coated paper

P238 - 1/- dull violet, BCP/PVA, two 4.75mm screen 150 phosphor bands, upright print (Cyl 11) - Deegam PD 12.2.1 - S.G specialised U26 - Stoneham M41 - Concise 742Ev

Two phosphor bands from cylinder 11 [26.4.68]
p239

PVA gum - Original coated paper - screen 150 phosphor bands

P239 - 1/- bright violet, OCP/PVA, two 4.75mm screen 150 phosphor bands, upright print (Cyl 11)

Two phosphor bands from cylinder 11 [2.70]

P239mp - 1/- bright violet, OCP/PVA, phosphor omitted, upright print (Cyl 11) - Deegam PD 12.2.1a

Phosphor omitted from cylinder 11 [2.70] Out of stock
p239

PVA gum - Original coated paper - screen 250 phosphor bands

P242 - 1/- bright violet, OCP/PVA, two 4.75mm screen 250 phosphor bands, upright print (Cyl 11) - Deegam PD 12.3.1

Two phosphor bands from cylinder 11 [2.70] Out of stock