wn1

Fluor shades viewed under long wave light.
DP numbers are the copyright of the MBPC and are used with their permission.

OFNP = Optical free non phosphorised paper PVA = Polyvinyl alcohol acetate gum
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WN1 - Northern Ireland 1st flame, OFNP/PVA, two 4.5mm Novaglo blue fluor bands, perforation 13.75 X 14 (DP304) (Walsall/gravure) - Deegam NN1.1.1 - S.G specialised XN56 - Stoneham UW1 - Concise NI88

Perforation 13¾ X 14 from Special by Design prestige pane DP304 [15.2.00]

WN1c - Northern ireland 1st flame, OFNP/PVA, two 4.5mm Novaglo blue fluor bands, perforation 14.75 X 14 (Cyl 1) (Walsall/gravure) - Deegam NN1.1.2 - S.G specialised XN56A - Stoneham UW1c - Concise NI88b

Perforation 14¾ X 14 from cylinder 1 [25.4.00]