Philosophical Society

Philosophical Society

Letter to Kazimierz Twardowski written 15.02.1928

Letter from Władysław Witwicki written 11.04.1938

Letter to Kazimierz Twardowski written 20.03.1925

Letter to Kazimierz Twardowski written 21.10.1931

Postcard from Stefan Szuman written 22.10.1937

Postcard from Kazimierz Twardowski written 19.10.1920

Letter from Hans Cornelius written 14.11.1937

Letter from Maria Turowicz written 01.11.1967

Letter from Irena Sławińska written 19.02.1954

Letter from Ludwig Landgrebe written 02.06.1936

Letter from Kazimierz Ajdukiewicz written 14.06.1925

Letter to Kazimierz Twardowski written 04.03.1917