2012 Olympic issues
Fluor shades viewed under long wave light.
OFNP = Optical free non phosphorised paper

PSA = Pressure sensitive adhesive

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OLSET - Set of 4 Olympic & Paralympic stamps, OFNP/PSA, two Novaglo blue fluor bands (Cylinder D1D1) (De La Rue/gravure)


From self adhesive sheets cylinder D1D1 [5.1.12]