Watch List notes:

Bactria, Amyntas (c. 60-40 BC), drachm, military bust left, rev., Zeus seated; in field, monogram, 2.37g (Bopearachchi p. 302, series 11, D, this piece recorded), good very fine and rare, apparently unique with this monogram. Ex Münzen und Medaillen list 332, 1972, 20.
Estimate: £300 - 500