Ss. Cosmæ et Damiani Martyrum ~ Semiduplex

Scriptura: Feria Sexta infra Hebdomadam XVIII post Octavam Pentecostes IV. Septembris

Image of Saints Cosmas (left) and Damian (right

Today is the feast of Ss. Cosmas and Damian, Mm, under the 1954 (semi-double) and 1962 (III class) rubrics.

Mass: Proper Mass. Red. Gloria. Gradual/Alleluia. Omit Credo. Common Preface. Celebrant bows his head at the mention of Ss. Cosmas and Damian in the Canon. Ite. Under 1954, 2nd prayer A cunctis for the intercession of the saints. 3rd prayer at the choice of the celebrant. No additional prayers under 1962.

Office: Ordinary office. Red. Matins of 3 nocturns of 9 lessons (1954; 1st nocturn = occurring Scripture for Friday after the 5th Sunday of September [obligatory due to the 5th week of September not being observed this year under 1954], responsory VIII = Haec est vera fraternitas)/1 nocturn of 3 lessons (1962; II = II & III of occurring Scripture [Friday after the 4th Sunday of September] combined, III = short hagiography). Te Deum. Psalms and antiphons of the feria. All else from the common of several martyrs outside Paschaltide. Proper collect. Suffrage of the saints (1954 only). 

(Thanks to LB236 on Twitter/X.)