The three main devices (symbols) in the Catley blazon are the escallop, lozenge and fesse. The three main tinctures (colors) are argent, gules and azure .
Argent is the heraldic metal Silver and is usually shown as very pure white. It is also known more poetically as pearl, moon (or luna) 1Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53. In a sketch or drawing it is represented by plain, unmarked paper 2A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1847, P11.
Gules, the heraldic colour red is very popular, sometimes said to represent “Military Fortitude and Magnanimity”3The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P36. It is usually abbreviated as gu and in the days before colour printing was shown in a system known as hatching by vertical lines 4Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P52. Although it may look like a French word it is normally pronounced with a hard “g” and may be derived either from the Latin gula (throat) or Arabic gule (rose).5A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1847, P154
Azure is the heraldic colour blue, usually quite a deep, dark shade of the colour (there is a lighter blue that sometimes occurs, known as celestial azure). If colour printing is not available then it can be represented by closely spaced horizontal lines in a scheme known as “hatching” 6Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 26. The word is thought to originate from the Arabic lazura and it represents the colour of the eastern sky. It is also said to be the colour associated by the Catholic Church with the Virgin Mary and hence of particular significance 7The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P150.
The escallopoccurs often in arms, represented as the outside of the shell, sometimes “fluted” of a different colour 8A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Escallop. It has been part of heraldic tradition almost from the beginning of the art, Henry III of England awarded Gules, 3 escallopes argent to Herbert de CHAMBERLEYNE in the 13th century, and it is present in the heraldry of almost all countries 9A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P299. It is believed that they were adopted as badges of those going to the Holy Land and can be found in the arms of many a crusading family. Hence Wade’s suggested association of the scallop with those that “complete long journeys to far countries” 10The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P91.
For easy recognition of the items on a coat of arms, and hence the quick identification of the owner, bold simple shapes are best. Hence, simple geometric shapes are often used for this purpose 11A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P146xz`, and the lozenge Is a typical example of this, and can appear in any of the main heraldic tinctures. It can appear on its own, voided (with the background visible through the middle), and can also be conjoined, whereby adjacent lozenges touch point-to-point. 12A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Lozenge Guillim groups the lozenge with all square shapes as being symbolic of “verity, probity, constancy and equity”. 13A Display of Heraldry, J. Guillim, Blome, London, 1679, P262
The fesse (also found as fess) is one of the major ordinaries to found in heraldry, being a bold, broad, horizontal band across the centre of the shield. It may originally have arisen from the planks of which a wooden shield can be constructed, the centremost plank being painted a different colour 14A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Fesse. It is instantly recognisable as a symbol, for example the arms of COLEVILLE granted during the reign of Hery III are simply or, a fesse gules. With this clear association with the construction of the shield itself, Wade believes that the fesse can be taken to be associated with the military, as a “girdle of honour”.