The pileus was a brimless felt hat, worn in ancient Greece between 8th – 4th century BCE. The two stars either side of the pileus represent the Kabeiroi, in a similar fashion to the Dioscuri being represented the same way on Roman coinage. My new acquisition TROAS, Birytis. Circa 4th Century BC. Æ 18mm 4.35gm. Head of Kabiros left, wearing pileus; star on either side of pileus / B-IP-Y in two lines either side of club, all within laurel wreath. SNG Copenhagen 247; SNG von Aulock 1502; Seaby 4056. Green patina.