Watch List notes:

Islands off Elis, Kephallenia. Pale. civic issue. 430-370 B.C. AE 12 (11.50 mm, 1.57 g, 11 h). Head of Hermes left wearing petasos / [Π] - [A], letters of ethnic in field to left and right of large kerykeion. Plant 2303; Lindgren II - ; Lindgren III -; BMC -; SNG Cop. -; Slg. BCD -. near VF, black-green patina with lighter deposits in recesses and fields, smallish flan with ancient chip. presumably rare. 

There is virtually nothing about this type on-line. It's listed in 2 places (wildwinds and CNG) and both use the same photo - the only work cited is Plant and it seems to be missing from all the important works - it must be presumed to be rare