Trade relations between Thracians and Greeks are attested from the early phase of the Greek colonization process of the West and Northwest Pontic seashores. As exchange units were used small bronze objects, called by specialists arrows of currency arrows and which had monetary value (or even ornament). These were in the form of willow or laurel leaves, with prominent median ribs and bent and slightly arched heads. Also known are arrows with two and three edges, some of which have fins with cut tips and a lead-filled tube often filled with lead. We mention that, based on the large discovery of this category of parts in the Carpathian-Balkan space, along with the molds, some researchers consider them to be a Thracian. At the same time, other specialists are of the opinion that these artifacts are an invention of the Greek colonists. The arrows of coins are found both in isolated finds, as well as in settlements or treasures, often found in an impressively large number. These vestiges are characteristic of a vast area, which includes the western and partly northern Black Sea area (from Apollonia to Olbia), the Dobrogean region (the Greek cities of Histria and Orgame) and the Lower Bera (the Berezani settlement).  Thus, we consider that these objects by their specificity and the spreading area have played an important role in the emergence and evolution of these commercial relations of the sec. VII-VI a.Chr., which led to interferences, regardless of their origin.