Caligula AE22 of Byzantium, Thrace, AD 37–41. 5.48 g. 

GAIOS SEBASTOS GERMANIKOS, bare head left.
BYZANTIWN, Corinthian helmet left.

RPC 1781A (Supp. IV).

With permission of Pecunem auction 23, lot 521, Oct. 2014.

RPC_1781A_Supp_IV