Miletopolis, Mysia, AE20 civic issue. 6.55 g.

Helmeted head of Athena facing.
MIL-HTO, owl standing left, head facing. 

Wroth 18 in Num Chron 1904.

Very rare. 

With permission of Gitbud & Naumann Auction 24, Lot 160, Nov 2014
(and thankyou to BCD for one of them as my birthday present :-)