Polish Academy of Sciences

Polish Academy of Sciences

Letter to Zofia Lissa written 11.05.1954

Letter to Kazimierz Ajdukiewicz written 3/15/1956

Letter from Stefan Żółkiewski written in 17.01.1966

Letter from Stefan Żółkiewski written in 12.07.1962

Letter from Zofia Lissa written 30.04.1954

Letter to Władysław Tatarkiewicz written 29.04.1965

Letter from Tadeusz Kotarbiński written 04.03.1961

Letter from Stefan Żółkiewski written in 23.12.1965

Postcard from Władysław Tatarkiewicz written 21.06.1966

Letter from Władysław Tatarkiewicz written 21.01.1961

Letter to Zofia Lissa written 30.03.1954

Letter from Władysław Tatarkiewicz written 24.02.1962