MOESIA. Istros. Circa mid to late 5th century BC. Drachm (Silver, 17 mm, 6.86 g, 8 h). Two facing male heads side by side, one upright and the other inverted. Rev. IΣTPI Sea eagle standing left on dolphin; all within incuse square. AMNG I 405. SNG BM Black Sea 225-6. Rare and nicely toned. Minor scrape on the reverse, otherwise, about very fine.