Athen, tetradrachm (17, 20 g), approximate 415 BC Av: Athena head with Attic helmet to the right. Rev: owl to the right, behind olive branch and crescent. Svoronos Tf. 13, no. 3-11, extremley fine from a Rhine private collection. Lot 165 the 193. Auction coin center Rhineland, 2021, Solingen.