The two main devices (symbols) in the Pickwick blazon are the pickaxe and cross moline. 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.
The bright, strong blue color in Heraldry is known in English as azure, and similarly in other European languages – azul in Spanish, azurro in Italian and azur in French. The word has its roots in the Arabic word lazura, also the source of the name of the precious stone lapis lazuli 7. Despite this, those heralds who liked to associate colours with jewels chose instead to describe blue as Sapphire. According to Wade, the use of this colour symbolises “Loyalty and Truth” 8.
The pickaxe is not a weapon of war but a tool of the builder and its appearance in a coat of arms is more likely to denote the profession of the holder or be some play on words on the family name. 9 it is shown conventionally as a wooden handle with a long, curved metal spike, very similar to its appearance today. 10
No other symbol appearing in heraldry is subject to as much variation as the cross 11. 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, typically involving patterning along the edges 12, or fanciful, decorative endings to the arms of the cross 13. The cross moline is typical of these whereby each arm of the cross expands and curves outwards, reminscent of the fer-de-moline from which it gets its name. These cross variations are probably largely for decorative effect, and to differentiate the arms from similar ones and hence their significance is that of the Christian cross itself.