The Collection of Oriental Manuscripts contains, for example, manuscripts in Arabic, Persian and Turkish. The collection is based on the manuscripts acquired by the explorer G.A. Wallin (1811–1852) during his trips to Arabia. Wallin's diaries, notes and other materials are included in personal archives. The collection also includes materials derived from G. J. Ramstedt (1873–1950), such as Mongolian manuscripts. The materials in the collection are varied ranging from papyri, parchments and palm leaves to writing on pieces of clay. In addition the collection contains the manuscripts brought with C. G. E. Mannerheim (1867–1951) from his trip to Asia, which are deposited at the library of the Finno-Ugrian Society. These may only be studied with a permission of the society.