Obverse: Laureate head of Apollo.
Reverse: Anchor inverted; to the left, A; to the right, crayfish.

The reference used for this coin is the British Museum Catalog of Greek Coins, volume 15.

Apollonia Pontica, as it is referred to in ancient times, was a port located on the western side of the Black Sea. Today, its location is the modern city of Sozopol in Bulgaria. It is situated about two hundred miles south of where the Danube River empties into the Black Sea.

In the fourth century B. C., it served as a major outlet for the transportation of grain from the Danube and Hebros valleys. Apparently, it was a major source of revenue for Miletos, its colonial patron, and maintained a consistent monopoly on Black Sea trade.

When this coin was struck, the city boasted a magnificent temple dedicated to Apollo. Apollo, the son of Zeus, was one of the major Greek gods. Temples and statues honoring him existed throughout Ancient Greece. Commonly represented as a youthful nude male figure, his worshippers associated him with medicine, prophecy, music, art, and many other aspects of Greek culture.

In addition, his temple boasted a large statue sculptured by the famous Greek artist Kalamis

The anchor and crayfish design on the reverse side of this coin symbolizes Apollonia as a seaport. The letter A is undoubtedly an abbreviation for the city name of Apollonia.