Fluor shades viewed under long wave light.

OFNP = Optical free non phosphorised paper PVA = Polyvinyl alcohol acetate gum
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Stamps printed Litho

bw63e

BN63E -Northern Ireland 63p emerald green, OFNP/PVA, two 4mm blue fluor bands (Cyls Q1Q1, Q2Q2) (Questa/litho) - Deegam N630.1.1 - S.G specialised XNL65 - Stoneham SLU99 - Concise NI77

Two 4mm blue fluor bands from cylinders Q1Q1, Q2Q2 [23.7.96]

Stamps printed Gravure

pn63e

PN63E - Northern Ireland 63p emerald green, OFNP/PVA, two 4.5mm Novaglo blue fluor bands (Cyl W1) (Walsall/gravure) - Deegam N630.2.1 - S.G specialised XN54 - Stoneham SLU107 - Concise NI85

Two 4.5mm Novaglo blue fluor bands from cylinder W1 [1.7.97]