Paper varieties viewed under long wave light.

BCP = Bluish coated paper PVA = Polyvinyl alcohol acetate gum
OCP = Original coated paper
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p221_p224

Gum Arabic - Bluish coated paper

P221 - 9d myrtle green, BCP/Arabic, two 4.75mm screen 150 B3 phosphor bands, upright print (Cyl 2) - Deegam PD 10.1.1 - S.G specialised U22 - Stoneham M9 - Concise 740

Two phosphor bands from cylinder 2 [8.8.67]
phosphor_omitted

P221mp - 9d myrtle green, BCP/Arabic, phosphor omitted, upright print (Cyl 2) - Deegam PD 10.1.1a - S.G specialised U22a - Stoneham M9a - Concise 740Ey

Phosphor omitted from cylinder 2 Out of stock
p221_p224

Gum Arabic - Original coated paper

P222 - 9d myrtle green, OCP/Arabic, two 4.75mm screen 150 B3 phosphor phosphor bands, upright print (Cyl 2)

Two phosphor bands from cylinder 2 [1967]
p221_p224

PVA gum - Bluish coated paper

P223 - 9d myrtle green, BCP/PVA, two 4.75mm screen 150 B3 phosphor bands, upright print (Cyl 2)

Two phosphor bands from cylinder 2 [29.11.68] Out of stock
phosphor_omitted

P223mp - 9d myrtle green, BCP/PVA, phosphor omitted, upright print (Cyl 2) - Deegam PD 10.2.1a - S.G specialised U23a - Stoneham M39a - Concise 740Evy

Phosphor omitted from cylinder 2 Out of stock
p221_p224

PVA gum - Original coated paper

P224 - 9d myrtle green, OCP/PVA, two 4.75mm screen 150 B3 phosphor bands, upright print (Cyl 2) - Deegam PD 10.2.1 - S.G specialised U23 - Stoneham M39 - Concise 740Ev

Two phosphor bands from cylinder 2 [29.11.68]