byzantine-bling:Antique patera (flat dish for the Host), serpentine, 1st BCE - 1st CE,from Alexandri
byzantine-bling:Antique patera (flat dish for the Host), serpentine, 1st BCE - 1st CE,from Alexandria. Mounting Carolingian, from the court of Charles le Chauve 2nd half 9th. Serpentine, precious stones, glass-paste. From the treasury of the Abbey of St.Denis. MR 415Louvre, Departement des Objets d’Art, Paris, France -- source link