 In 2001 a gold coin bearing the name Coenwulf was found at Biggleswade on a footpath beside the River Ivel.The 4.33 g (0.15 oz) mancus, worth about 30 silver pennies, is only the eighth known gold coin dating to the mid to late Anglo-Saxon period.Its inscription, "DE VICO LVNDONIAE", shows it was minted in London.