The two main devices (symbols) in the Carkham blazon are the lion rampant and border. The two main tinctures (colors) are gules and argent.
Red in heraldry is given the name Gules, sometimes said to be the “martyr’s colour”1The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P36. The colour is also associated with Mars, the red planet, and the zodiacal sign Aries 2Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53. Later heralds of a more poetical nature would sometimes refer to the colour as ruby, after the precious stone.3A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P77.
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) 4Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53. In a sketch or drawing it is represented by plain, unmarked paper 5A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1847, P11.
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 rampant is an example of these modified form, and any family would be proud to have such a noble creature displayed on their arms. Rampant is the default attitude of the lion, raised on its hind legs, facing to the dexter and with front paws extended in a fearsome and powerful pose.
The border, (sometimes bordure) is a band running around the edge of the shield, following the edge contours and being differently coloured, possibly holding a series of small charges placed on top of it 8A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Bordure. According to Wade, the bordure itself has no direct meaning, but is perhaps a container for the meaning of its colour or those additional charges placed upon it 9The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P50