? Kreutz

? Kreutz

Letter to Kazimierz Twardowski written 14.12.1934

Letter to Kazimierz Twardowski written 04.05.1933

Letter from Kazimierz Twardowski written 31.12.1927

Letter from Kazimierz Twardowski written 26.11.1934

Letter to Kazimierz Twardowski written 14.01.1928