The team, which has been working for months to take apart the collection at La Hougue Bie, recently removed the 51,000th coin but also spotted a mysterious piece of material.
After taking away some of the surrounding items, researchers believe that they have found a textile bag containing gold and silver jewellery dating back thousands of years.
The Jersey Heritage team of researchers who are extracting the coins and other treasures from the hoard are around two-thirds of the way through the project.
