Joined Libraries WFiS UW, IFiS PAN and PTF

Joined Libraries WFiS UW, IFiS PAN and PTF

Letter to Kazimierz Twardowski written 03.09.1926

Letter to Kazimierz Twardowski written 17.10.1927

Letter to Kazimierz Twardowski written 28.02.1936

Letter to Kazimierz Twardowski written 23.07.1935

Letter to Kazimierz Twardowski written 20.03.1925

Letter to Kazimierz Twardowski written 13.05.1925

Postcard to Kazimierz Twardowski written 07.02.1925

Letter to Kazimierz Twardowski written 07.01.1925

Letter to Kazimierz Twardowski written 27.01.1923

Postcard to Kazimierz Twardowski written 06.08.1934

Postcard to Kazimierz Twardowski written 28.07.1933

Letter to Kazimierz Twardowski written 13.10.1920