However, the ca. 1764 door provided more than just details for the physical restoration. Holes cut into the door also gave evidence that a very large "stock" lock was once installed on the door. A stock lock did not have a door knob and instead was opened with a large key. These locks were relatively inexpensive but also strong enough to secure the door.  Because of the lock evidence, it was determined that the northern cellar room was used to store valuable supplies, such as flour, wine, and sugar and so the space is now called the secured storage cellar.