There is a broken queen piece in a similar style from an excavation of the archbishop's palace, similar carving in Nidaros Cathedral in Trondheim, the excavation in Trondheim of a kite-shaped shield similar to shields on some of the pieces and a king piece of similar design found on Hitra Island, near the mouth of Trondheim Fjord. Woolf has said that the armour worn by the chess figures includes "perfect" reproductions of armour worn at the time in Norway.