contract

contract

Letter to Tadeusz Kotarbiński written 29.05.1953

Letter from Irena Krońska written in 14.12.1964

Letter to the Committee of the Library of Classics of Philosophy written 06.11.1951

Postcard from Henryk Elzenberg written 20.04.1964

Letter to the Committee of the Library of Classics of Philosophy written 09.07.1951

Letter to the National Scientific Publishers written 31.01.1963

Letter from Irena Krońska written in 16.07.1954

Letter to the Committee of the Library of Classics of Philosophy written 18.07.1951

Contract with the National Scientific Publishers written 10.12.1954

Letter from Irena Krońska written in 10.07.1954

Letter from Irena Krońska written in 13.07.1954

Letter to Irena Krońska written in 23.06.1966