Thrace, Byzantion. Alliance Coinage With Kalchedon, Late 3rd-2nd Centuries Bc. Æ (25mm, 9.90g).

Thrace, Byzantion. Alliance Coinage With Kalchedon, Late 3rd-2nd Centuries Bc. Æ (25mm, 9.90g). Wreathed And Veiled Head Of Demeter R. R/ Poseidon Seated R., Holding Aphlaston And Trident; Monogram To Inner R. Schönert-geiss, Byzantion 1271-5; Hgc 3.2, 1428. Green Patina, Vf