All Treasure finds must be reported to the Coroner within 14 days. In the first instance please report your find to the Coroner’s Office. Failure to do so is a criminal offence. The Coroner will contact the relevant body to investigate your find.
If the find is declared to be Treasure then it may be claimed by the Crown, and if so, the Treasure Valuation Committee will value the find and you will be awarded the full market value of the Treasure.
Access the Information leaflet "The Treasure Act, Information for finders of treasure in England and Wales"