A bronze coin struck in the name of Cotys I, the ruler of the Bosporan Kingdom, by his son and successor Rhescuporis II was found by chance on the outskirts of Augustów in 2017. This coin is a dupondius with a value equal to 24 units, as attested by the value mark Κ-Δ on the reverse. The finder, Mr Marcin Haraburda, handed it over to the Regional Museum in Augustów. Although the coin find does not have any clearly determined context, it is possible – on the basis of a general analysis of the inflow of the Imperial and Roman provincial coinage into the area of the West Balt Culture Environment and the broadly conceived archaeological context – to link the presence of this dupondius with the milieu of the Sudovian culture, which started to develop in that territory beginning from the Younger Roman Period.