Administrative Office
Ostrakon Ltd
Clarendon House
52 Cornmarket Street
Oxford, OX1 3HJ
United Kingdom
Tel.: +44 (1865) 304072
Fax: +44 (1865) 304001
Company Number: 5460045
German Office
USt.-ID Number: DE24555508
Ostrakon (gr.
) – Shard of pottery. These were used for ballotting in early systems of democracy.