28 May the Apostolic Blessing which We impart from the bottom of Our heart to you, Venerable Brethren, and your clergy and the Italian people, be a sign of divine favor and a pledge of Our very special affection. Given at Saint Peter's, Rome, on the Feast of Pentecost, June 11, 1905, the second year of Our Pontificate.
Source: Il Fermo Proposito (Vatican.va)