The two main devices (symbols) in the Lennon blazon are the mount and buck. The two main tinctures (colors) are argent and vert.
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.
The deep green colour that is so often observed in heraldry is more properly known as vert. According to Wade, the use of this colour signifies “Hope and Joy”, but may also represent, rather delightfully, “Loyalty in Love” 3The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P36. It has other names also, the French call it sinople, perhaps after a town in Asia Minor from where the best green die materials could be found 4A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Vert. More fanciful heralds liked to associate it with the planet venus and the precious stone emerald 5Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 27. More strangely, there is some evidence that the term prasin was anciently used, being the Greek for the vegetable we call the Leek!
The mount (also known as a hillock 6Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 324) is the area at the base of the shield and when so described is almost always green, and somewhere that another charge is placed, to appear more realistic, or give it a specific relationship to other charges around it. 7A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Mount Indeed, unlike like most of the flat, geometric shapes used to divide the field of the shield, the mount may be drawn with tufts of grass and a distinct slope!
We should be surprised to find the stag or buck, noble quarry of many a mediaeval hunt, being illustrated in many a coat of arms. 8Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 69. It shares many of the poses to be found with the lion, but also one almost unique to the deer, grazing, as if the animal is still unaware of the hunter’s approach. 9A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Deer. In common with all symbols related to the hunt we probably need look further for their intended meaning than the pleasure taken by the holder in such pursuits! 10The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P30