TBESG:ὀβολόςa obolusan obol , as a weight, = 1/6th part of a δραχμή, worth rather more than three halfpence, [5th/4th c.BC]; ἐν δυοῖν ὀβολοῖν θεωρεῖν, as we might say "to sit in the shilling gallery, " [Refs 4th c.BC] (ML)