The main device (symbol) in the Bunton blazon is the hand. The two main tinctures (colors) are argent and sable.
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) 1Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53. In a sketch or drawing it is represented by plain, unmarked paper 2A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1847, P11.
Sable, the deep black so often found in Heraldry is believed to named from an animal of the marten family know in the middle ages as a Sabellinœ and noted for its very black fur 3A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Sable. In engravings, when colors cannot be shown it is represented as closely spaced horizontal and vertical lines, and appropriately is thus the darkest form of hatching, as this method is known 4Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 26. Although it may seem a sombre tone, and does indeed sometimes denote grief, it is more commonly said to represent Constancy 5The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P35.
The hand, unless we are told otherwise is a dexter (right) hand shown palm outwards and fingers upwards.6A Glossary of Terms used in Heraldry, J.B. Parker, 1894 P305. It demonstrates faith, sincerity and justice, and in the form of two right hands clasped can mean union or alliance7The Symbolisms of Heraldry, W Cecil Wade 1898 P92. There is a special form called the “Hand of Ulster” which is a sinister hand gules on an argent background (a left hand, red upon white). Originally the Badge of Ulster, the Province of Northern Ireland, it has come to be used as an addition to existing arms, in an escutcheon (small shield) or canton (small square) to indicate that the holder is also a Baronet.8Heraldry Historical and Popular, Charles Boutell, 1864 P56