The two main devices (symbols) in the Dapifer blazon are the cross and escarbuncle. The two main tinctures (colors) are gules and or.
Gules, the heraldic colour red is very popular, sometimes said to represent “Military Fortitude and Magnanimity”1The 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 2Understanding 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).3A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1847, P154
The bright yellow colour frequently found in coats of arms is known to heralds as Or, or sometimes simply as Gold.4Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 27. Along with, argent, or silver it forms the two “metals” of heraldry – one of the guidelines of heraldic design is that silver objects should not be placed upon gold fields and vice versa 5A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P85. The yellow colour is often associated with the Sun, and the zodiacal sign of Leo.6Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53.
No other symbol appearing in heraldry is subject to as much variation as the cross 7Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 47. Mediaeval Europe was a deeply religious and Christian and many of the nobility wanted to show their devotion by adopting the symbol of the cross as part of the arms. In its basic form, the cross is created from two broad bands of colour at right angles covering the whole extent of the shield. It has been subject to all manner of embellishment, and the interested reader is referred to the references, especially Parker’s Heraldic dictionary for many examples of these. 8A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Cross 9A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P106 10A Treatise on Heraldry, J. Woodward, W & A.K Johnston, Edinburgh & London, 1896, P160-173 Suffice it to say that any armiger would be proud to have such an important device as part of their arms.
The escarbuncle is a very ancient symbol that actually predates heraldry, although of uncertain origin. In appearance it resembles the “boss” at the centre of a shield and the strengthening rods radiating from it, and this has become its recognised heraldic form. 11A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Escarboucle. Wade refers to its original meaning as a “symbol of supremacy”. 12The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P114