Collection includes Flige's memoirs, which discuss such topics as his childhood and education; ballet and theatre; Kiev and St. Petersburg; his great-uncle, N.Kh. Bunge, his father-in-law V.N. Kokovt︠s︡ov, and Sergeĭ Witte; and of the 1917 Revolution. There are also essays by him on such topics as insurance companies, on the business world of St. Petersburg, and on agrarian issues. Notes and materials collected by Flige evidently relate to a planned book on the fate of the Imperial family during the Revolution. Printed materials include M. Gert︠s︡enshteĭn's, "Agrarnyĭ vopros" (1906), and Aleksandrov's, "Nekotorye dannyi︠a︡ po agrarnomu voprosu" (1917).

Correspondence, manuscripts, photographs and subject files of Witte. The correspondents include Ivan S. Aksakov, Tsar Aleksander III, Tsar Nicholas II, Konstantin P. Pobedonost︠s︡ev, I︠U︡riĭ Samarin, Lev N. Tolstoĭ and Kaiser Wilhelm II. The manuscripts, which constitute over half of the collection, consist of Witte's memoirs and of his work on the Russo-Japanese War, and include a signed typescript essay by Lev N. Tolstoĭ. The photographs depict the signing of the Portsmouth Treaty ending the Russo-Japanese War (Portsmouth, N.H.). The subject files, which are primarily typescript copies of documents, refer to such topics as the various assassination attempts on the tsars, questions of agrarian reform, relations with Germany, and the siege of Port Arthur. There is also a framed pen and ink drawing depicting an event in Witte's public career.