SOBRAL José María (1880/1961), Argentine Antarctic explorer, his signature on a postcard illustrated with image of Mitre and himself, VF quality (Image)

Antarctic flight brochure "Preparación de la Supervivencia para el Vuelo al Polo Sur" (Survival preparation for flight to South Pole), brochure with 11 illustrated pages with description of the preparations made for the crew in case of an accident, VF quality (Image)