PAN

PAN

Letter to Władysław Tatarkiewicz written 22.03.1969

Letter to the Polish Academy of Science written 07.03.1966

Letter from Kazimierz Wyka written 28.08.1968

Protocol from the meeting of the PPS Board 12.05.1957

Letter to the Polish Academy of Science written 17.05.1966

Letter to Władysław Tatarkiewicz written 02.03.1963

Letter to Stefan Żółkiewski written in 07.05.1964

Letter to the Polish Academy of Science written 31.03.1965

Letter from Henryk Markiewicz written 15.07.1963

Letter from Stefan Żółkiewski written in 29.05.1967

Letter to Irena Krońska written in 19.01.1955

Letter to Władysław Tatarkiewicz written 21.09.1960