Cracow

Cracow

Letter to the Committee of the Library of Classics of Philosophy written 03.12.1968

Letter to the Polish Academy of Science written 17.05.1966

Letter to the National Scientific Publishers written 31.01.1963

Letter to the National Scientific Publishers written 10.12.1954

Letter to the Committee of the Library of Classics of Philosophy written 21.08.1952

Letter from Irena Sławińska written 2/23/1958

Letter to the Polish Academy of Science written 19.10.1963

Letter to the Polish Academy of Science written 11.03.1965

Letter to the Polish Academy of Science written 22.12.1965

Postcard from Kazimierz Ajdukiewicz written 10/10/1948

Letter to Władysław Tatarkiewicz written 23.03.1953