The four main devices (symbols) in the Agnew blazon are the cinquefoil, saltire, chevron and eagle. The two main tinctures (colors) are argent and gules.
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) 1. In a sketch or drawing it is represented by plain, unmarked paper 2.
Gules, the heraldic colour red is very popular, sometimes said to represent “Military Fortitude and Magnanimity”3. It is usually abbreviated as gu and in the days before colour printing was shown in a system known as hatching by vertical lines 4. 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).5
Natural objects abound in heraldry, and one category that gives especial delight are the many flowers and flowering plants that frequently occur 6. The cinquefoil is also of this type, being drawn, at least a little, realistically and often to very pleasing effect. It is shown as five-petalled flower, each petal quite rounded but with a distinct tip. It is sometimes pierced with a hole in the centre and usually appears on its own, without any leaves. 7 It has no fixed colour but can appear in any of the available heraldic tinctures.
The saltire is one the major ordinaries, large charges that occupy the whole of the field 8. Arguably one of the best uses of this device is that of the St. Andrews Cross, a white saltire on a blue background found on the Scottish flag. The saltire is obviously closely related to the Cross, and Wade in his work on Heraldic Symbology suggests additionally that it alludes to “Resolution”, whilst Guillim, an even more ancient writer, somewhat fancifully argues that it is awarded to those who have succesfully scaled the walls of towns! 9
The chevron is one the major shapes used upon a shield, known as ordinaries. The inverted ‘V’ of the chevron is perhaps thought to have originated to represent a military scarf folded on the shield 10, or additional cross-pieces used to strengthen the shield and painted a different colour.11. It has also acquired the meaning of “Protection… granted… to one who has achieved some notable enterprise” 12, possibly becuase of its resemblance to the roof truss of a house.