Diadumenian AE24 of Deultum, Thrace.

M OPEL ANTO-NINUS DIAD C, bare-headed, draped, cuirassed bust right.
COL FL PAC DEVLT, Perseus standing left, holding head of 
Medusa, right foot on a sea-monster, and unchaining
Andromeda standing right, chained to a rock.

Varbanov 2205 (this coin).

With permission of cngcoins.com, Aug. 2008.