The seal matrix belonged to a medieval gentleman called Walter. The red jasper gem was carved in the Roman period.A seal matrix was used to make a mark in hot wax to seal letters and documents.

A treasure expert is appealing for local historians to solve a mystery around the owner of a medieval seal matrix. The 13th or 14th Century silver matrix - used to stamp an impression on wax seals ...

The monks may not have even realized that the skins were from seals. The creatures were rarely depicted in medieval art, and during this period, there was no French word for "seal." That leaves ...

So last week, a group of researchers who were studying a set of medieval books published their ... books - they probably didn't know what a seal was. KELLY: These monks lived in Clairvaux.

A rare medieval illuminated manuscript uncovered ... while she was cataloguing the religious order's collection. The scroll is set to become "the jewel in the crown" of the new Treasures gallery ...

Protein fingerprint and DNA analysis revealed them to be not local cows or sheep, but seals from as far away as Greenland. The find highlights the extent of medieval trade.

So last week, a group of researchers who were studying a set of medieval books published their findings ... the monks who made these books - they probably didn't know what a seal was. KELLY: These ...