"Some 20 years ago, permission was granted by Chester City Council to use a modified City Coat of Arms.

The motto "optima-beatis" loosely translated as "the very best, for the fortunate few" was added.


Today, using pureSilica's interpretation of Leonardo de Vinci's proportion drawing (Virtruvian man), pureSilica reaches out to those 'who appreciate the finer things of life.'

Leonardo da Vinci

...also known as Leonardo di ser Piero da Vinci - Italian High Renaissance Painter and Inventor, 1452-1519

Leonardo da Vinci extensively studied the proportions of the human body. His drawing of the Virtruvian man, illustrates the use of his 'golden section.'

He divided the height of a person into two line segments, the dividing point being the person's navel, so that the distance from the soles of their feet to their navel, then divided by the distance from their navel to the top of their head was equal to 0.618, the 'golden mean.'

Further Reading - About pureSilica.

A Musical Canon of Proportion in Leonardo da Vinci's Last Supper.