Now mostly refers to minor corrections of flaws, made directly on to the cylinder in photogravure printing.

The printer’s term to describe a typeface having no serifs (i.e. Cross strokes) at the end  of each stroke on

The small cuts or holes made at regular intervals to assist in separation. Unlike perforation, no paper is removed in

Any multiple comprising stamps of different varieties, usually different face values or designs. Many booklet panes and miniature sheets have

The French equivalent of roulette meaning quite literally pierced. Several types are recognised by collectors including: Percé en arc –

Also known as the Treasury Roulette, since it was applied unofficially to the imperforate stamps used by the Treasury during