Obverse:
The obverse features two youthful male heads facing side by side, with one inverted, a distinctive and symbolic design associated with the coinage of ancient Istros. The imagery is often interpreted as representing the Dioscuri or dual aspects of identity and protection, a common motif in early Greek coinage of the Black Sea region.

Reverse:
A sea eagle stands left upon a dolphin, with the inscription IΣTPIH and control mark ΔI in the field. The scene reflects the coastal and maritime identity of Istros, symbolising power over sea trade and the importance of navigation and commerce.

Details:
Struck circa 280–255 BC in Moesia at Istros, this silver drachm measures 17mm and weighs 5.69 grams. It is an early and highly recognisable type of Greek colonial coinage from the Black Sea region.