invitation

invitation

Letter from Tadeusz Czeżowski written 12.04.1966

Letter from Kazimierz Ajdukiewicz written 26.02.1961

Letter to the Polish Academy of Science written 15.09.1964

Letter from Stefan Szuman written nd.06.1942

Letter to the Polish Academy of Science written 01.07.1963

Postcard from Stefan Morawski written N/D 2

Postcard from Stanisław Ignacy Witkiewicz written 17.02.1938

Letter from Tadeusz Czeżowski written 09.04.1968

Letter from Stefan Szuman written 03.03.1942

Letter from Kazimierz Ajdukiewicz written 01.10.1948

Letter to the Polish Academy of Science written 11.03.1965

Letter to Mieczysław Wallis written 03.08.1963