Pergamon, Mysia. AE12, civic issue, ca 310-284 BC. 

Helmeted head of Athena right.
PERG beneath two stars, Theta above.

BMC 24-25; Weber 5167; SNG France 1587; SNG Cop 325. (Note: With F: SNG Tuebingen 2364-2365)

With permission of Savoca Numismatik GmbH Blue Auction 4, Lot 296, Dec. 2017.