Georgii Orlov, Bishop of Trans-Baikal and Nerchinsk, 1900. This collection consists of sixty-six photographs and documents that depict the history and activities of the Russian Orthodox Church in Buryatia in the nineteenth and early twentieth centuries. It includes the papers of Nikolai, Bishop of Alaska and the Aleutian Islands; views of Orthodox churches and cathedrals; church records; confessional lists; birth registers; music manuscripts, and other documents. M. N. Khangalov Museum on the History of Buryatia