The article considers the investigation of numismatic materials, which were excavated in the burial-mound of a Turk royal family member in Mongolia. The study of the items required a more accurate definition of the special terms used for the findings of such a kind: a coin, a coin imitation, and a coin indication. The attribution of the numismatic complex allow dividing it in three parts; each of them contains the maximum of similar “national” sings: the Byzantine, the Sassanid, and the Sogdian ones. Differences between them are determined by the influence of the early Byzantine and Sassanian mintages on the cultural traditions of Central Asian region, from which the numismatic goods went to east to the lands of the Turkic Khaganats. Chronologically all these parts of the complex embrace the period from the VIIth to early VIIIth century AD. However, numismatic complex itself is likely to have got into the tomb in the 30-s of the VIIIth century. It is indicated by the participation of the Chinese workers in the construction of the monument, which is proved by written sources and corresponding to the indicated time period appearance of the items.