18 Meantime, may the Apostolic Blessing, which We lovingly impart to you, Venerable Brethren, and to all your flock, be a pledge of heavenly gifts and a token of our affection. Given at Rome, St. Peter's the fifteenth day of the month of April, Good Friday, in the year 1949, the eleventh of Our Pontificate.
Source: Redemptoris Nostri Cruciatus (Vatican.va)