Aegina, island off Attica, 320-280 BC., Chalkus, BMC 219.

Aegina, island off Attica, ca. 320-280 BC.,
Chalkus / Æ11 (ø 11 mm / 1,53 g), bronze, axes coin alignment ↑↓ (180°),
Obv.: A , letter between two dolphins swimming upwards.
Rev.: N - O , incuse square of refined skew pattern, letters in upper fields.
Traité Tf. CXCV, 23 ; BMC 143, 219 .