\r\nThe most commonly used type of key in Byzantine society was the turning key, which in basic function is identical to some old-fashioned locks still in use today. Channels and notches cut into the edges of the keys’ bits provide security, as these must correspond precisely to the internal mechanisms of the lock to release or secure the latch or closure. The additional perforations and patterns within the contours of the bits, however, are purely decorative. The crude workmanship and the...