Attica, Athens (late 5th - early 4th century BC), AR Tetradrachm, 17.17g, helmeted head of Athena right, rev. ae, owl standing right, head facing, olive-spray and crescent behind, all within incuse square (cf. Svoronos pl.26), countermark in reverse field, very fine.
Estimate: £200.00 - £250.00