Tium, Bithynia. AE21, semi-autonomous issue. AD 193-250. 4.9 g. TEIOC, diademed and draped bust of Tios right. TIANWN, caduceus between crossed cornucopiae. RecGen 17; SNG von Aulock 929-931; Waddington 540; Paris 1618. Contributed by Tom Mullally