Great Britain. Parys Mine Company, Thomas Williams, (1737-1802). Penny (Token) 1787. AE. 29.12 g. 33.80 mm. On the edge: ON DEMAND IN LONDON LIVERPOOL OR ANGLESEY. Good VF.
Williams effectively gained control of the entire operations of the Parys Mountain and, later, the Cornish Metal Company, giving him a near monopoly over the development and production of copper and the copper trade in Great Britain.