L'Osservatore Romano, Feb. 27th, 1948. Report of Private Audience of Pope Pius XII to Father Migliorini and Father Berti, accompanied by Father Cecchin. This document certifies the historical validity of the audience of the fathers of the OSM.
Bascilica of the Annunciation, Flourence, Italy: Where the mortal remains of Maria Valtorta are buried underneath the altar. This Bascillica also contains signed testimonies of the four eye witnesses to the Papal Imprimatur of 1948.