The two main devices (symbols) in the Erdington blazon are the lion passant and water bouget. The two main tinctures (colors) are azure and or.
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” 1Boutell’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 2The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P150.
Or is the heraldic metal Gold, often shown as a bold, bright yellow colour. It is said to show “Generosity and elevation of the mind” 3The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P35. Later heralds, of a more poetic nature liked to refer to it as Topaz, after the gemstone, and, for obvious reasons associated it with the Sun 4Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53. In drawings without colour it is usually represented by many small dots, or by the letter ‘O’ 5A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P76-77.
There can be no animal more clearly associated with Heraldry than the lion, majestic King of the Beasts. Originally it appeared only in one pose, erect, on one paw, with the others raised 6Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 64 but such was the popularity of this figure, and the need to distinguish arms from each other, that it soon came to be shown in an enormous range of forms 7Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P136-141. The lion passant is an example of these modified form, showing the creature on all fours, as if walking proudly. In common with all reprensentations of the lion it can be taken to be an “emblem of deathless courage”. 8The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P61
A wide variety of inanimate objects 9A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P281 appear in coats of arms, so of them still recognisable today, others now rather obscure. The images used are often simplified and stylised, the water bouget is a typical case of the later, such that the casual observer would be hard pressed to discern its function. It represents in fact a yoke with two skins attached to be worn over the shoulder and has been found in coats of arms almost from the beginning of the art. 10A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Water Bouget. Somewhat literally, Wade suggests that their appearance on arms may have been due to a holder who had “brought water to an army or beseiged place”. 11The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P114