friendship relation

friendship relation

Postcard from Stefan Szuman written 10.02.1943

Letter from Kazimierz Ajdukiewicz written 10.03.1928

Postcard from Edmund Husserl written 18.07.1920

Postcard from Tadeusz Kotarbiński written 02.05.1923

Postcard from Tadeusz Kotarbiński written 01.03.1936

Postcard from Stefan Szuman written 15.08.1939

Postcard from Stefan Szuman written 19.11.1942

Letter from Stefan Szuman written 06.03.1939

Letter from Kazimierz Ajdukiewicz written 15.05.1924

Letter from Kazimierz Ajdukiewicz written 18.08.1923

Letter from Kazimierz Ajdukiewicz written 14.11.1926

Letter from Fritz Kaufmann written 03.11.1935