Danubian District, Istrus. Drachm; Danubian District, Istrus; 4th cent. BC, Drachm, 4.68g. SNG BM-242. Obv: Two facing male heads, l. head inverted. Rx: Sea eagle l. with dolphin in talons, ISTPIH above, ?A monogram below dolphin.Obverse struck with worn die. Exceptional reverse. EF