Polish Philosophical Society

Polish Philosophical Society

Postcard from Tadeusz Kotarbiński written nd.nd.nd

Letter to Kazimierz Twardowski written 20.03.1925

Letter to Stefan Żółkiewski written in 05.02.1964

Postcard to Kazimierz Twardowski written 24.08.1936

Letter from Kazimierz Twardowski written 03.06.1937

Letter from Tadeusz Kotarbiński written 02.12.1967

Letter to Tadeusz Czeżowski written 19.10.1954

Letter to Henryk Elzenberg written 03.03.1964

Letter to Władysław Tatarkiewicz written 19.10.1969

Letter to Władysław Tatarkiewicz written 29.10.1969

Letter to Władysław Tatarkiewicz written 27.10.1961

Letter to Kazimierz Ajdukiewicz written 21.06.1949