Augmented reality is very widely used to increase the attractiveness of sightseeing cultural heritage objects. Many locations are superimposed with additional computer generated data such as monuments, buildings, virtual characters, fauna and flora using dedicated systems that must be compatible with existing preservation policy. In this paper we present an example of an application that is used in King's Chinese Cabinet (Museum of King Jan III's Palace at Wilanów, Warsaw, Poland) that was scanned twice, before and after restoration works. This set of 3D data allows us to create an unique application that visualizes the real past state of preservation instead of computer generated artificial one. The interior is under a very strict protection and that increases significantly the requirements for an augmented reality system.