Tricking is a method for indicating the tinctures (colours) used in a coat of arms by means of text abbreviations written directly on the illustration. Tricking and hatching are the two primary methods employed in the system of heraldry to show colour in black and white illustrations.
- ^ Ciacconius, Alphonsus (1677). Vitae et res gestae Pontificum romanorum et S.R.E.Cardinalium: ab initio nascentis Ecclesiae vsque ad Clementem IX P.O.M. [Life and achievements of the Roman Pontiffs and the HRC Cardinals: from the beginnings until Clement IX] (in Latin). Vol. 3. Philippi et Ant. De Rubeis. Column 65, XIX.