This oval-shaped wooden box possibly served for the safe-keeping or secure transport of important documents, holy relics, or valuable artifacts of the church. On the lid, the remnants of sealing marks made with sealing wax of red and blue color most likely indicate that this object was repeatedly used, although it is not yet certain when. Although none of the sealing marks has been identified so far, it is possible that the box was in use before or during the hospitaller rule period (when the island was under the rule of knights of the hospitaller order). This claim is based on the observation of a wax sealing mark of red-brown colour bearing a cross, which is probably knightly. Below this, some older sealing wax of dark colour is also distinguishable.

Sealing wax was already well-known since the middle ages due to its typical property of easy agglutination with paper or other surfaces. It was used for many centuries in the sealing of packages, documents, etc., while it is still in such use in certain cases until today. Its making is based on a mixture of natural and mineral resins and beeswax, to which pigments are added in order to give it a desired color. This material can be melted and liquidated with the help of flame into a viscous substance, which then solidifies quickly and turns into a highly durable material. Since the stamp marks made on sealing wax when it is still liquid cannot be easily tampered with once it solidifies, they were also used for the certification of the authenticity of the object they accompanied.