Sacristy n. : An apartment in a church where the sacred utensils, vestments, etc., are kept; a vestry.

Example:
Where can I find a complete breviary and a Sacristy manual?

Taxonomy
sacristy, churches, free encyclopedia, Sacristies, service, vestments, the church, ground, hangings, sacred vessels, altar linens, search, cabinet, shallow, drawers, church furnishings, parish records, inside the church.

Defination from the web:
Sacristy with a sacristycredens (a cabinet with wide and very shallow drawers in which vestments and hangings are stored) ... The sacristy is also where the priest and attendants vest and prepare before the service. ...