The four main devices (symbols) in the Carpenter blazon are the cross crosslet, chevron, paly and eagle. The three main tinctures (colors) are or, gules and azure .
The bright yellow colour frequently found in coats of arms is known to heralds as Or, or sometimes simply as Gold.1. 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 2. The yellow colour is often associated with the Sun, and the zodiacal sign of Leo.3.
Red in heraldry is given the name Gules, sometimes said to be the “martyr’s colour”4. The colour is also associated with Mars, the red planet, and the zodiacal sign Aries 5. Later heralds of a more poetical nature would sometimes refer to the colour as ruby, after the precious stone.6.
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” 7. 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 8.
No other symbol appearing in heraldry is subject to as much variation as the cross 9. 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. Since no two arms could be identical there arose many variants of the cross. The cross crosslet is one of these, being symetrical both vertically and horizontally and having an additional cross bar on each arm. 10 Wade suggests that these additional crossing signify “the fourfold mystery of the Cross”. 11
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 12, or additional cross-pieces used to strengthen the shield and painted a different colour.13. It has also acquired the meaning of “Protection… granted… to one who has achieved some notable enterprise” 14, possibly becuase of its resemblance to the roof truss of a house.
Play is what is known as a treatment, a regular patterning, usually over the whole background of the shield. The word comes from the pale, the major vertical stripe that appears on some shields, paly is obvious its little cousin, consisting of, typically, 6 or more vertical stripes, alternately coloured 15. The stripes can be any combination of the heraldic tinctures, an early example is that of GURNEY, being simply paly of six, or and argent. Paly can be combined with other effects, such as decorative edges on each stripe, or overlaid with other treatments such as bendy, and these can be very effective and pleasing to the eye 16.