CNG Auction #15
 Web Product ID: 3268
 Estimate: $200.00
 Final Sale Price: $137.50
 Denomination: Drachm
 Grade: VF
 Reference: SNG BMC Black Sea 246; Pick, AMNG 417

Black Sea Area. Moesia, Istros. Circa 4th Century BC. AR Drachm (5.79 gm). Facing
  male heads, tête-bêche, the right inverted / ISTRH, sea-eagle grasping dolphin with
  talons; AG monogram below. SNG BMC Black Sea 246; Pick, AMNG 417. Nice VF. Estimate  $200.
Although numismatists have put forth many theories to explain the curious obverse
  type of the Istrian coins with the two heads tête-bêche, the most plausible
  explanation is that the design represents the two branches of the Danube River.

Used by permission of CNG, www.historicalcoins.com