SGY1690var 25p Harrison Rose-red 2-B Blue Fluor printed on Substandard Paper

SGY1690var 25p Harrison Rose-red 2-B Blue Fluor printed on Substandard Paper with very matt white PVA gum U/M. Stated by Royal Mail to be from a Rogue Reel similar to that used for the 1944 trial on lay-flat gum (and now used on Harrison special stamps) Spec U291b Conn RSF254