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archive

Letter from Irena Krońska written in 05.01.1966 (1)

Letter to the Polish Academy of Science written 15.09.1964

Letter from Kazimierz Ajdukiewicz written 03.11.nd

Letter to the Committee of the Library of Classics of Philosophy written 14.05.1954

Letter to Władysław Tatarkiewicz written 09.05.1961

Letter from Kazimierz Ajdukiewicz written 14.11.1926

Letter to Kazimierz Twardowski written 31.10.1919

Letter from Tadeusz Kotarbiński written 02.12.1967

Article of Wacław Borowy in “The Warsaw Review”? from 12.05.1925

Letter from Juliusz Kleiner written 06.08.1945

Letter to Kazimierz Twardowski written 30.03.1920

Letter from Tadeusz Czeżowski written 29.05.1958