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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p262

Gum Arabic - Milky coated paper

P262 - 1/9 orange & black, MCP/Arabic, two 4.75mm screen 150 phosphor bands (Cyl 1A1B) - Deegam PD 14.1.1 - S.G specialised U30(1) - Stoneham M12 - Concise 744

Two phosphor bands from cylinder 1A1B [5.6.67]
p262

Gum Arabic - Bluish coated paper

P264 - 1/9 bright orange & black, BCP/Arabic, two 4.75mm screen 150 phosphor bands (Cyl 1A1B) - Deegam PD 14.1.1b - S.G specialised U30(2) - Stoneham M12b - Concise 744Ea

Two phosphor bands from cylinder 1A1B [1967]

P264mp - 1/9 bright orange & black, BCP/Arabic, phosphor omitted (Cyl 1A1B)

Phosphor omitted from cylinder 1A1B Out of stock
p262

PVA gum - Original coated paper

P266- 1/9 bright orange & black, OCP/PVA, two 4.75mm screen 250 phosphor bands (Cyl 1A1B) - Deegam PD 14.2.1 - S.G specialised U31 - Stoneham M44 - Concise 744Ev

Two phosphor bands from cylinder 1A1B [16.11.70]