His Holiness, Pope Pius XI, granted to all the faithful who, during the month of June, publicly assisted at the exercises in honor of the Most Sacred Heart of Jesus:
An indulgence of ten years, once a day.
A plenary indulgence, provided they have taken part in the same exercises at least ten times, and have gone to confession, received Holy Communion, and prayed for the intention of the Supreme Pontiff.
Imprimatur, 1943. 113 page book.