The main device (symbol) in the Bartsch blazon is the squirrel. The two main tinctures (colors) are azure and gules.
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.
The bold red colour on a heraldic shield is known as gules. It has a long history within heraldry, it is known that one of those who besieged the scottish castle of Carlaverock in 1300 was the French knight Euremions de la Brette who had as his arms a simple red shield.3The Siege of Carlaverock, N. Harris, Nichols & Son, London, 1828, P180. The word gules is thought to come from the Arabic gule, or “red rose” 4Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 313. Later writers associated it with the precious stone ruby and the metal iron 5Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53, perhaps because of the red glow of iron in the heat of the blacksmith’s forge.
The squirrel is a quite delightful charge, always shown sitting upright (known as sejant) and eating a nut, 6A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Squirrel in a most lifelike manner (as this author can attest due to the presence of exactly such a creature outside his window as I write this). It should not surprise us that the significance of such a creature upon a coat of arms is a love of the “sylvan retirement” to be found in the woods and forest. 7The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P69