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Letter from Stanisław Wędkiewicz written 27.01.1948

Letter to the Committee of the Library of Classics of Philosophy written 26.08.1952

Letter from Jan Patočka written 25.08.1945

Letter from Stanisław Ignacy Witkiewicz written 14.02.1939

Letter from Tadeusz Czeżowski written 5/29/1946

Letter from Stefan Żółkiewski written in 10.01.1964

Letter from Kazimierz Ajdukiewicz written 15.05.1924

Postcard from Stefan Szuman written 19.11.1942

Letter to Mieczysław Wallis written 03.08.1963

Letter from Władysław Tatarkiewicz written 15.02.1937

Letter to the Committee of the Library of Classics of Philosophy written 22.05.1954

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