Pitane, Mysia. AE11 civic issue. 400-200 BC. 2 g.

Head of Zeus-Ammon facing slightly right. 
PITANAIWN. serpent with head right coiled around omphalos, pentagram in right field. 

SNG von Aulock 1430 and 7520. 

With permission of Leu Numismatik AG Web Auction 11, Lot 826, Feb 2020

Note: SNG vA 7520 is slightly heavier at 3 g.