SOLEMN PONTIFICAL MASS in the Ambrosian Rite celebrated by Cardinal Montini—later elected Pope Paul VI—in the St. Peter’s Basilica during the Second Vatican Council:
Courtesy of this wonderful Polish blog.
“Is it not true that prohibiting or suspecting the extraordinary form can only be inspired by the demon who desires our suffocation and spiritual death?” —The Vatican’s chief liturgist from 2014-2021; interview with Edw. Pentin (23-Sep-2019)