15.31 methods and techniques of archaeology 1 20.15 conservation, restauration and forgery of works af art 1 Antiquités 1 Antiquities 1 Archeologische vondsten 1 Art objects 1 Collection and preservation 1 lisää ... Collections 1 Collections et conservation 1 Congrès Conservatie Conservation and restoration 1 Conservation et restauration 1 Cultural property 1 Kunstvoorwerpen 1 Materiaalkunde 1 Objets d'art 1 Protection 1 vähemmän ...