The ring has been linked to a curse tablet found at the site of a Roman temple dedicated to the god Nodens in Gloucestershire.

BBC: Roman ring

Archaeologist Sir Mortimer Wheeler is believed to have discussed the ring with Tolkien after realising its connection to the curse.

BBC: Roman ring

The ring, which is inscribed in Latin and has been linked to a Roman curse tablet, is being exhibited for the first time at The Vyne, in Hampshire.

BBC: Roman ring