Gergis, Troas, AE17, 400-241 BC. 3.6 g. 

Three-quarter facing head of Sibyl Herophile, turned 
slightly right, wearing laurel wreath and pendant necklace.
GER, Sphinx sitting right, grain ear below. 

BMC 5-8; SNG Tuebingen 2594 and 2596-2597; Luynes 2515; SNG von Aulock 1514; SNG Cop 339; Sear Greece 4099. 

With permission of Savoca Numismatik Online Auction 25 | Silver, Lot 162, Sept. 2018.