If your stamps are worn out or non-functional, you can contact the Dean's Office to have a new one made.
The format is uniform for the whole faculty: i.e. name of the university and faculty + address. In the case of a department, there is also the name of the department. You can separate the stamps within the department by numbering in the right-hand corner.
In case of specific requirements, please consult with Mgr. Jan Šplíchal.