• Mattoir

    metal engraving tool primarily for stipple manner. Made in  a form of a metal pounder, its  round working surface has spears, which produce small dots and stipples on the matrix surface.

  • Mezzotint

    (Italian mezzo – medium, tinto – inked, i.e. half-tone) – also called black manner. Intaglio engraving on metal plate; polished metal plate is roughened either mechanically (with fine burrs) or chemically, thus producing a rich velvety black at printing. The design is made by needle or crayon, the plate is then worked back with scrapers and burnishers to extract the white areas, thus creating lighter values and half-tones. This technique was invented by the German Ludwig von Siegen in the middle of the 17th century.