Tenos, Cyclades, AE24 semi-autonomous issue, 1st c. BC. 6.38 g.

THNIWN, Poseidon standing left, holding trident over dolphin.
Amphitrite standing right, looking left, holding sceptre and raising right arm.

Paris 479 (this coin); BMC 33; de Quere 162; Boutin 4238-4241; RPC I 1302.

Courtesy of the Bibliotheque Nationale, Paris, gallica.bnf.fr.