The collection is comprised of materials related to the diplomatic, political, and personal affairs of Aital' and Iurii Vitoshyns'kyi. It includes biographical materials, personal documents, correspondence, legal documents, reports, meeting minutes, and various publications. Additionally, there are materials related to Ukrainian diplomatic missions, political parties, conflicts, and ideologies, along with personal correspondence and documents. The inventory also contains items pertaining to the Ukrainian People's Republic, its statutes, and financial matters, as well as materials regarding the Second World War period, such as letters, documents, and ephemera. Additionally, there are items, in postage stamps, envelopes, and half-tone printing plates.