friendship relation

friendship relation

Postcard from Tadeusz Kotarbiński written 01.03.1936

Postcard from Stefan Szuman written 15.08.1939

Letter from Stefan Szuman written 03.03.1942

Postcard from Stefan Szuman written 12.06.1942

Postcard from Kazimierz Ajdukiewicz written 04.08.1925

Letter from Fritz Kaufmann written 13.05.1931

Postcard from Władysław Tatarkiewicz written 11.06.1922