PAN

PAN

Letter to the Polish Academy of Science written 22.12.1965

Letter from Jerzy Rudzki written 13.01.1965

Letter from Stefan Żółkiewski written in 15.03.1968

Letter to Stefan Morawski written 26.06.1967

Letter to Władysław Tatarkiewicz written 27.06.1969

Letter from Stefan Żółkiewski written in 29.05.1967

Letter from Stefan Żółkiewski written in 12.02.1966

Letter to Władysław Tatarkiewicz written N/D (b)

Letter from Stefan Żółkiewski written in 03.02.1966

Postcard from Stefan Morawski written 05.12.1965

Letter to the Polish Academy of Science written 15.09.1964

Letter from Adam Schaff written 12.06.1962