1967-may-04 Tres abhinc annos (SC Instruction 2)

1967-may-04 Tres abhinc annos

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Instruction #2 on the proper implementation of SC



Quote from Liturgiam authenticam:
"Three years later, on 4 May 1967, a second Instruction was issued, Tres abhinc annos. This described further adaptations to the Order of Mass."