USA

USA

Letter from Władysław Tatarkiewicz written 24.07.1962

Postcard from Stefan Morawski written 09.10.1966

Letter to the Polish Academy of Science written 05.03.1969

Letter from Władysław Tatarkiewicz written 04.10.1962

Letter from Władysław Tatarkiewicz written 05.07.1967

Letter to Władysław Tatarkiewicz written 08.10.1962

Postcard from Stefan Morawski written 16.07.1966

Letter from Irena Sławińska written 31.01.1959

Letter to Tadeusz Kotarbiński written 23.02.1961

Letter from Irena Sławińska written 17.11.1968

Letter from Irena Sławińska written 10/31/????

Letter from Władysław Tatarkiewicz written 14.03.1968