Commodus, billon tetradrachm of Alexandria, Egypt, AD 177-192. 12.63 g.
Dated Year 29 of Marcus Aurelius, AD 188-189. 

MA KOM ANT CEBAC CEB, Laureate head right.
Galley sailing past Pharos of Isis, 
Date L KQ below. 

Milne 2683; Sear SGI 2067; Dattari 3903; Geissen 2542; Köln 2242-2243.

With permission of Numismatica Ars Classica auction 92 Part 2, Lot 2274, May 2016