Marcus Aurelius, AE19 of Coela, Thrace. 4.1 g.

IMP CAI MAR AV A, bare-headed, draped and cuirassed bust right.
AIL MVNICIPI COILA, forepart of galley sailing right over waves, 
six? oarsmen and corn-ear on deck.

Varbanov 2987 var (obv legend and no star); RPC IV online 10947 var (ditto).
Very rare.

Contributed by David Lowe, Oct. 2016.