ww1
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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WW1 - Wales 1st Flame, OFNP/PVA, two 4.5mm Novaglo blue fluor bands, perforation 13.75 X 14 (DP304) (Walsall/gravure) - Deegam WN1.1.1 - S.G specialised XW56 - Stoneham WW1 - Concise W97

Two 4.5mm Novaglo blue fluor bands, perforation 13¾ X 14 from Special by design prestige pane DP304 [15.2.00]