Roman Ingarden

Roman Ingarden

Letter to the Polish Academy of Science written 24.09.1969

Letter to Kazimierz Twardowski written 05.10.1923

Letter of thanks written n/d

Postcard from Stanisław Ignacy Witkiewicz written 07.10.1937

Letter to Kazimierz Twardowski written 30.04.1919

Letter from Kazimierz Nitsch written 09.06.1948

Letter to Kazimierz Twardowski written 01.04.1925

Letter to Kazimierz Twardowski written 30.03.1920

Letter to the Committee of the Library of Classics of Philosophy written 10.12.1953

Postcard from Stanisław Ignacy Witkiewicz written 17.12.1934 (w liście błąd: 17.10)

Letter to Kazimierz Twardowski written 23.12.1931

Letter from Stanisław Ignacy Witkiewicz written N/D