The Sworn Promise of Zaisang Tsyuryum Nushaev for Fidelity to Service in the Position of Guardian of Erketenevsky Ulus, given by him on April 12, 1855

Introduction. This article continues author’s study of the species composition and content of archival documents created during the activity of the Horde branch of the Astrakhan Chamber of State Property (1848–1881). Of particular interest are the cases revealing the process of infusion of Kalmyk society into the all—Russian state system after the adoption of the “Regulations on the Administration of the Kalmyk people” dated April 23, 1847. The purpose of the study is to introduce scientific turnover is the oath promise of Zaisang Tsyuryum Nushaev, to study the procedure for reviewing documents on the appointment of a guardian over the ulus, to identify common features and peculiarities in the acceptance of an oath (oath) by Kalmyk owners in accordance with all-Russian norms. Results. The analysis of archival documents and the procedure for their review revealed their compliance with all-Russian requirements and such a feature in office management as bilingualism — the preparation of documents in Russian and Kalmyk using the Old Kalmyk script todo bichig (“clear writing”). It was found out that the procedure for making an oath as a type of document in the Kalmyk steppe in the 19th century corresponded to all-Russian norms, but at the same time had differences in the swearing-in ceremony and its written design.