Heraia, Arkadia, AR obol, 0.98 g, 5th-4th centuries BC. 

Archaic head of Artemis left, bow before.
Large E, H to left, RA upwards to right (R retrograde).

BCD Peloponnesos 1157; BMC 14.
Extremely rare. Ex BCD Collection.

With permission of cngcoins.com, March 2011
Estimate: $300.