Diocletian, Potin Tetradrachm, Alexandria. Year 1, 284-285 AD. 6.37g; 20mm.

Obv: A K GOYA DIOKLHTIANOC CEB, laureate, cuirassed bust right.
Rev: Nike advancing right, holding wreath and palm. L-A across fields.

Emmett 4066; Milne 4753.

With permission of Roma Numismatics, Oct, 2010