The collection covers a period between the 17th to 20th century and contains over two thousand private and legal archival materials. They include an assortment of books and manuscripts from former Jesuit and Augustinian libraries, a collection of school banners as well as political and social organization banners, and various exhibits from the January Uprising, both World Wars and the period of Polish People’s Republic. Presented militaria include swords and bayonets from the 19th and 20th centuries.