Methymna, Lesbos. AR hemiobol, 6 mm, 0.20 g. ca 480-460 BC. 

Facing head of Silenos.
MAQ, rooster right in incuse square. 

Hoover HGC 1894; SNG Arikanturk 675; Coll. sans Pareille (Nomos) 420.

Sold by Gorny & Mosch auction 204, Lot 1486, March 2010.