[1] The treasure was accidentally discovered inside a pottery vessel during building work at Beaurains, Pas-de-Calais on 21 September 1922.

Items from the Beaurains Treasure are now found in collections worldwide, but the two institutions with the greatest proportion of the hoard are the Musée d'Arras and the British Museum.

There are twenty-three pieces of jewellery (necklaces, bracelets, earrings, buckles, finger rings, cameos and pendants), silver objects (a lamp stand or candelabra, two spoons and an ingot) and 472 coins that were kept in a (now lost) silver container, including at least 25 gold medallions issued during the reign of Constantine I.

The medallions were minted in Trier and Rome and were probably gifts received by the owner of the treasure during his career as officer of the imperial army between 285 and 310 A.D. Their value ranges from four to ten aurei, and from one and a half to nine solidi.

One of the medallions was issued to celebrate the reconquest of Britannia by Constantius I in 296 A.D, the reverse of which is denoted by an image of Londinium, represented by a woman welcoming the Emperor on her knees outside the city walls.