Athen, tetradrachm (17, 21 g), approximate 5. / 4. Jh. BC Av: Athena head with Attic helmet to the right. Rev: owl to the right, behind olive branch and crescent. Comp, Flament Tf. 25 no. 11 / 14, Svoronos -, extremley fine from a Rhine private collection. Acquired in the 1980 / 90s in the Rhine coin trade.