Aurelian, Potin Tetradrachm, Alexandria. Year 1 of Aurelian; Year 4 of Vabalathus, 270-271 AD. 

Obv: AVRHLIANOC KAI AQHNODWPOC, L-A across fields, laureate, draped and 
cuirassed bust right.
Rev: IAC OVABALLAQOC AQHNOV AVT CPW, L-Delta across fields, laureate, 
draped bust of Vabalathus right. 

Milne 4316-4318.

With permission of Roma Numismatics, October, 2010