Athens ... Τετράδραχμο Αθηνών 3ου αιώνα π.Χ. Coin no. 1. Casts. Brown earth on bedrock east of poros blocks and north of their line - i.e. floor of building. Head of Athena r., wearing Attic helmet ornamented with ... Ca. 390-295 B.C ... Svoronos (1923), pl. 20:1-33,35-37 ... Pedley (2012), p.208, fig. 7.2.