Sikyon, Peloponnesos, AR triobol, 14 mm, 2.61 g, c. 330-280 BC, 

Chimera standing left, SI below.
Dove flying left, three dots in left field. 

SNG Cop. 64-65; BMC 124; BCD 294.

With permission of Savoca Numismatik GmbH & Co. KG - Blue Auction 4, Lot 212, Dec 2017.