It is said of keys. Aristophanes in Thesmophoriazusae [writes] "for husbands now carry secret keys, most ill-natured ones, certain Lakonian ones, with three teeth. So previously it was possible, for women who had had a three-obol seal-ring made, to open the door. But now this man [Euripides] has taught them [to have seals] of worm-eaten wood".[1]