A squashed, muddy piece of jewellery dug up in a field has been found to be more than 400 years old and officially declared treasure.

Jacob Purdie, from Lancaster, found the gold pin head in a field in Burton-in-Kendal in Cumbria while metal detecting last year.

It was ruled to be treasure by the county’s coroner in December and is now awaiting valuation.

In quick succession last year he discovered the filigree gold pin head and a quarter noble - a rare gold hammered coin.

Single gold coins do not count as treasure so Mr Purdie paid the landowner half its value and kept it.

The pin head is believed to date back to the 16th Century and, as it is gold and more than 300 years old, qualifies as treasure under the Treasure Act of 1996.