The papers of Maslovskiĭ consist of correspondence, manuscripts, photographs, and subject files. Among the correspondents are Mark Aldanov, General Nikolaĭ I︠U︡denich, and many former Russian officers. Manuscripts consist largely of Maslovskiĭ's bound typescript memoirs"Nekotorye stranit︠s︡y moeĭ zhizni" (ca. 2,200 p.); the manuscript version of the first six volumes of the memoirs is also included, as is a memoir about his service in Persia in 1909-1914. Subject files include correspondence, manuscripts, and printed materials about his research on World War I, his book, General I︠U︡denich, and other topics.

The papers consist of correspondence, manuscripts, notes, documents, photographs, subject files, and printed materials. Among the correspondents are Louis Marin, Mikhail Osorgin, Alekseĭ Remizov, Boris Ubegaun, George Vernadsky, and the "Eurasianists" Petr Savitskiĭ and Petr Suvchinskiĭ; there is one letter from Nikolaĭ Marr. There is the manuscript of Nikitin's memoirs, "Arabeski: pochemu i︠a︡ stal vostochnikom?" There are extensive notes of lectures by Nikolaĭ Berdi︠a︡ev in 1925. Numerous photographs date from Nikitin's service in Iran. Subject files concern the Eurasian movement (evraziĭstvo), and the Committee "For Return to the Homeland" ("Za Vozvrashchenie na Rodinu"). Printed materials largely consist of Nikitin's own writings.