Kings of Bosporus. Aspurgus, with Gaius (Caligula). Circa 14-38 AD. Æ 12 Unit (23mm, 10.83g, 12h). Struck circa 37-38 AD. Bare head of Caligula right / Diademed head of Aspurgus right; monogram and IB in fields. MacDonald 302; RPC I 1904; Anokhin 320. Near Fine.