In Medieval times these rings were associated ... He said: 'I had been on the field a couple of times before but had not found anything of importance and had been detecting for a couple of hours ...

In Medieval times these rings were associated ... He said: 'I had been on the field a couple of times before but had not ...

The rare gem-set Medieval bishop's ring is expected to sell for between £15,000 to £18,000 A rare Medieval bishop's ring found by a retired firefighter in a Norfolk field is expected to fetch up ...