organizational issues

organizational issues

Protocol from the meeting of the PPS Board 12.05.1957

Letter from Kazimierz Ajdukiewicz written 11/17/1949

Postcard from Stefan Szuman written 22.10.1937

Letter from Felix Kaufmann written 23.03.1936

Letter from Tadeusz Kotarbiński written 02.12.1967

Letter from Stefan Żółkiewski written in 09.04.1964

Letter from Kazimierz Ajdukiewicz written 17.11.1949

Letter from Tadeusz Kotarbiński written 21.03.1968

Letter from Stefan Żółkiewski written in 10.01.1964

Letter to Stefan Żółkiewski written in 05.02.1964

Postcard from Kazimierz Ajdukiewicz written 10/10/1948

Postcard from Kazimierz Ajdukiewicz written 10.10.1948, pp.1,2