The year 1998 marks the 50th anniversary of the founding of Katedra Fototechniki at Technical University of Wrocław. On this occasion, a congress of graduates of this faculty [Pierwszy Wielki Zjazd Fototechników] was organized, to be held 25 -26 of September 1998.

The illustration presents copies of three documents used as invitations:
Top - special postal cover with Katedra Fototechniki logo,
Middle - side a of an information card,
Bottom - side b of an information card.