The museum collection includes a dirk in leather scabbard with a single-edged blade and a brass hilt. The exhibit dates back to 1771. It belonged to a prince from Teleisky settlement of Boturussky ulus, called Uot Sirey Kydaala — in Yakut “Kydaala” means “with a face of fire”.

The hilt of the dirk is made in the form of an elongated figure of a sable with pinned ears and a bent tail. The torso is flat, small legs and the transition from the torso to the legs are marked with notches that imitate wool. There is an inscription on the arch: “Baturussky ulus of Teleisky volost…“, further illegible. The dirk was discovered during excavations led by Dmitry Dyachkovsky — Sehen Bolo and donated to the Churapchinsky Museum.

Dmitry Dyachkovsky was a folk historian, ethnographer, local historian and archaeologist. From 1923 to 1925 he studied in Yakutsk at the First Soviet School, in 1925 he entered the veterinary department of the Yakutsk Medical College, but a year later he returned home because his father and sister were ill.

Dyachkovsky’s work and research activities were quite extensive: between 1925 and 1931 he was engaged in collecting folk legends, and later, from 1931 to 1934, he studied the methodology of recording folklore materials and writing materials on the history and ethnography of the Yakuts. From 1934, he worked as an instructor of the Bureau of Local History and the Society for the Study of the YASSR.

In 1934, on Dyachkovsky’s initiative, a collection point for exhibits related to the ancient history of the settlements was established in the alaas, or geological formation, “Suturuolaakh” of the Ozhulunsky settlement. In 1936 about 150 samples of tools, hunting gear and other artifacts were stored there. Between 1937 and 1946 Dmitry Dyachkovsky was a researcher at the Institute of Language and Literature under the Council of People’s Commissars of the Yakut ASSR. In 1938, together with the local historian Andrey Savvin, he undertook a folklore and dialectological expedition to the Vilyui group of districts, where he collected valuable materials on folklore and ethnography. Between 1939 and 1941 he took part in an expedition to the northern regions of Yakutia.

Between 1937 and 1938, he participated in archeological expeditions of the Yakut Regional Museum to study ancient Yakut burials in the Megino-Kangalassky and Churapchinsky districts. In 1942, he was employed at the Yakutsk Museum of Local Lore as a head of collections department. He did a lot of work on collection arrangement and exhibit inventory in the museum.