The ICL Old Czech Collection contains microfilms and photocopies of Old Slavonic, Old Czech and Latin manuscripts and print materials sourced from local and foreign library archives. This vast archive includes over 163,000 microfilm frames and 155,000 photocopies. Among the most important items are works by Jan Hus, Jan Comenius and medieval records including an autograph of the Zbraslav Chronicle by Petr Žitavský from the Vatican Library collection. Items in the Old Czech Collection are available on request to users in the ICL Study Room.