Strange A4 paper with blue lines
I picked up a ream of A4 paper at a bootfair (for nothing really). The sheets are blank on one side. The other side has seven vertical lines in blue ink. Two lines, which are actually each made up of a very close pair of lines themselves, are vey close to one edge. The other five lines (which include two which are each in fact close pairs also) are over towards the other edge of the sheet of paper.I assumed that they were some form of accountancy paper, but have noticed that the blue ink tends to immediately spread a bit when dampened. I wonder if that is a security feature? Does anybody recognise this type of paper?
David Ainsworth ● 2571d0 Comments