High Quality Content by WIKIPEDIA articles! The Franks Casket (or the Auzon Casket) is a small Anglo-Saxon whale`s bone (not baleen) chest from the early eighth century, now in the British Museum. The casket is densely decorated with knife-cut narrative scenes in flat two-dimensional low-relief and with inscriptions mostly in Anglo-Saxon runes. Generally reckoned to be of Northumbrian origin, it is of unique importance for the insight it gives into early Anglo-Saxon art and culture. Both identifying the images and interpreting the runic inscriptions has generated a considerable amount of scholarship.