PWN

PWN

Postcard from Stefan Morawski written 16.04.1966

Letter from Irena Krońska written in 11.07.1961

Letter from Stefan Morawski written 30.09.N/D

Letter from Irena Krońska written in 10.04.1967

Letter from Tadeusz Czeżowski written 20.12.1957

Letter from Irena Krońska written in 08.06.1955

Letter to the National Scientific Publishers written 08.01.1964

Letter to Władysław Tatarkiewicz written 28.04.1970

Letter from Irena Krońska written in 21.09.1954

Letter to the Committee of the Library of Classics of Philosophy written 14.05.1954

Letter to Irena Krońska written in 22.08.1963

Letter from Irena Krońska written in 27.05.1967