IONIA, Teos. Circa 500-475 BC. AR Stater (19mm, 11.96 g). Griffin seated right, raising forepaw; E before / Quadripartite incuse square. Balcer group -/X mule (A-/P33 [unlisted obv. die]); SNG Copenhagen -. EF.
Balcer reverse die P33 is only recorded for his Group X, which has a heron on the obverse and no inscription. The obverse die used for this coin is from an unrecorded Group that has an E on the obverse. Although Balcer’s Group IV is recorded as having an E on the obverse, the sole obverse die for the group, A12, actually has an M-E (see the Paris specimen = Traité I 500).