Pergamon, Mysia. AR diobol, civic issue, 310-284 BC. 10mm, 1.32 g.

Head of Herakles right, wearing lionskin headdress.
PERGAMH, cult image of Pallas Athena (the palladium) 
standing facing, holding spear and shield. L in left 
field. (Note: the L can be upright or sideways).

Var of BMC 9-10; McClean 7668-7669; Weber 5160 and Mionnet Supp II, 2 467 (all without L in left field).

With permission of Numismatik Naumann auction 77, Lot 161, May 2019.