This master thesis presents the course of conservation and restoration treatment of the neoclassical console mirror from the collection of the Gučetić-Gozze summer villa in the Trsteno Arboretum. The introduction of the work discusses a broader context, explaining the preconditions of the cooperation between the Croatian Academy of Arts and Sciences as the owner of the Trsteno Arboretum and the Department of Art and Restoration of the University of Dubrovnik. In addition, the work provides a comprehensive insight into the historical and stylistic development of the summer villa and the arboretum, with special attention to the interior inventory from the time of the villa's construction to the recent past, when it became public property. The technological research and diagnostic methods used to study this, at first sight simple object, allowed the author to present the results obtained and findings about the materials and methods used in the construction of this object. The research results formed the basis for the proposal of conservation and restoration works that defined the treatment. In this paper, the documentation of the conservation and restoration treatment is presented in accordance with the chronology of the works performed on the wooden frame and the glass amalgam mirror.