The sacristy has a shrine dedicated to Saint John Baptiste de la Salle, 17th century founder of the Christian Brothers, which began in 1845 here in Baltimore. The seal of his institute occupies the left door of the triptych. On the right hand side is his family coat of arms. This shrine serves as the repository for the sacred oils of the Archdiocese (in the silver urns), which the Archbishop blesses at the Chrism Mass each year during Holy Week. These are the oils used for Baptisms, Confirmation and the Anointing of the Sick.