Poznań, Collegium Novum, Instytute of Prehistory,
Adam Mickiewicz University (UAM), March 1983.
Celebration of the 60th birthday of Prof. Jan Żak
(director of the Institute of Prehistory, Adam Mickiewicz University in Poznań).
From the left: (1) Lech Krzyżaniak, Ph.D.;
(2) Stanisław Jasnosz, Ph.D. (Poznań Archaeological Museum);
(3) doc. Michał Kobusiewicz (head of the Department of Archaeology of Greater Poland
and Pomerania, Institute of History of Material Culture, Polish Academy of Sciences);
(4) Janina Effertowa, MA (Institute of Prehistory, UAM - librarian);
(5) Ludwik Fijał (Institute of Prehistory, UAM - draftsman).