PWN

PWN

Letter from Irena Krońska written in 15.10.1965

Letter from Irena Krońska written in 05.01.1966 (1)

Letter to Władysław Tatarkiewicz written 05.02.1958

Letter from Władysław Tatarkiewicz written 21.01.1961

Letter to the Head Management of the PWN written in 29.12.1967 (via Irena Krońska)

Letter from Irena Krońska written in 10.04.1967

Postcard from Tadeusz Czeżowski written 06.03.1958

Letter to the Committee of the Library of Classics of Philosophy written 12.08.1952

Letter to the National Scientific Publishers written n/d

Certificate from Irena Krońska written in 10.06.1955

Letter from Irena Krońska written in 12.02.1955

Letter from Irena Krońska written in 13.01.1961