title: Tamgha of “Guyuk” and the Jochids of the House of Orduids (the story of one mistake)
abstract: Research objectives: The purpose of this study is to attribute unusual tamghas found on silver dirhams to the representatives of the House of Chingizids and establish their chronological attribution. Research materials: We have examined silver coins with unusual tamghas discovered in Kazakhstan. One tamgha is depicted as two circles connected by a line. Our focus is on a type of dirhams that has been known since the early 20th century. These dirhams lacked attribution but were published by N.P. 
journal: Golden Horde Review