Pergamon, Mysia. AR Diobol. ca 450-350 BC. 11mm, 1.49 g.

Laureate head of Apollo right.
PERGA, bearded head of a satrap right, wearing Persian tiara, crescent above head, all within incuse square. 

BMC 1.

With permission of cngcoins.com, auction 403, Lot 159, Aug. 2017.