The collection of firms' prints is a large archival file (about 350 r.m. covering the time span from the mid-19th century till present time. It contains a very heterogeneous documentation material of firms - promotional leaflets and folders, instructions for use and maintenance of machines, instruments and various mechanisms, price lists of firms and department stores, occasional prints of Czech as well as foreign industrial and trading firms. A frequently utilized part of the collection contains firms' leaflets of car and motorcycle makers of Czech and foreign provenance, cataloques and price lists of industrial goods from the turn of 19th and 20th centuries.