EXHIBITS > Telecommunication of the ancient Greeks >
Twofold waxed plates
Wooden plates with their inner surface slightly curved and covered with black wax. A special wooden stick (with a pointed end on the one side for writing the message and a flat end on the other for erasing it) was used to engrave the message on the waxed surface with normal or cryptographic letters (i.e. with the use of dots instead of vowels, mirror writing, etc.), or in special cases under it (i.e. the message of the exiled Spartian Dimaratos in the Persian palace: "Xerxis is going to attack Greece".
SOURCES: "Homer, Ilias, Z 156", "Αpollodoros, ΙΙ 3. 1", "Herodotos, Histories, I", "Polydeukis, Onomastikon, X57", "Αristofanis, Nefelai"