English: The prayer, "Lamb of God," which the priest says shortly after the Pater Noster - "Our Father" - during the Mass. He looks at the Host and strikes his breast while saying this prayer.
Date
Source
The Catholic Picture Dictionary, 1948, Garden City Books, by Harold A. Pfeiffer
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.