The main device (symbol) in the Dever blazon is the bend. The two main tinctures (colors) are gules and ermine.
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
Ermine is a very ancient pattern, and distinctive to observe. It was borne alone by John de Monfort, the Earl of Richmond and Duke of Brittany in the late 14th century 4A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P69 It has a long association with royalty and the nobility in general and hence represents “Dignity” wherever it is found 5The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P39. The ermine pattern is white with, typically, a three dots and a dart grouping representing the tail of the furred creature.6Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 28. The ermine spot is sometimes found alone as a special charge on the shield.
The bend is a distinctive part of the shield, frequently occuring and clearly visible from a distance – it is a broad band running from top left to bottom right 7Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 39-40. Indeed, so important is the bend that it was the subject of one of the earliest cases before the English Court of Chivalry; the famous case of 1390, Scrope vs Grosvenor had to decide which family were the rightful owners of Azure, a bend or (A blue shield, with yellow bend). 8A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P22. The bend is held in high honour and may signify “defence or protection” and often borne by those of high military rank 9The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P49.