This CO (GT 218) belongs to the "fer. 6. Pent" if you follow the old manuscripts (Hesbert, AMS). Who can inform us why and when this CO changed from fer. 6 to Sab. Q.T. in substitution for CO Non vos relinquam (GT 232)? Perhaps James W. McKinnon (The Advent Project) had found out something about this fact. Thank you very much!
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