? Kreutz

? Kreutz

Letter to Kazimierz Twardowski written 14.01.1928

Letter from Kazimierz Twardowski written 31.12.1927

Letter to Kazimierz Twardowski written 04.05.1933

Letter to Kazimierz Twardowski written 14.12.1934

Letter from Kazimierz Twardowski written 26.11.1934