organizational issues

organizational issues

Letter to Kazimierz Twardowski written 16.05.1924

Letter to the Polish Academy of Science written 22.09.1964

Postcard to Kazimierz Twardowski written 21.04.1923

Postcard from Tadeusz Czeżowski written 24.05.1950

Postcard from Stanisław Ignacy Witkiewicz written 06.10.1935