Edward I (Longshanks), 1272-1307. Copper Alloy Jetton, c.1303-7. ‘Sterling Bust’ Type. 
 
Obv: Crowned bust facing, pseudo-legend of pellets and rosettes around. Rev: Long cross moline, cinquefoil in each angle within inner border, pseudo-legend of cinquefoils around.
 
A rich green surface tone / patina.