TYPE Ancient Greece, Istros (Thrace), 4th c. BC, silver trihemiobol (quarter stater) DESCRIPTION . Obv: Two male heads facing, right one inverted Rev: Sea eagle on dolphin, Greek legend ISTRIE REFERENCE: cf. SG 1670, SNG Cop. 200 GRADING: VF, toned ORDER INFO: G1539, $90 While hardly reflecting zoological reality - as an 18-pound eagle is unlikely to attack a much heavier dolphin at sea - the reverse scene, present on coinages of two Black Sea cities (Istros and Sinope - though rather distant, they were both originally Milesian colonies) might have some symbolic significance in juxtaposing two leading deities - Zeus and Poseidon - through their sacred animals.