Mirror Stage revolves around a controversial intervention in the urban landscape of Berlin: the demolition of the GDR building Palast der Republik to make way for a reconstruction of the Prussian castle Berliner Schloss, which recently opened as the Humboldt Forum. The installation orchestrates a direct confrontation between the structures by isolating two distinct elements. One is a Prussian eagle, a symbol of imperial dominance, taken from the Humboldt Forum’s facade. The eagle faces a fragment of the facade of the Palast der Republik, whose bronze-tainted, reflective windows were a symbol of progress and modernity. 
    Part of the production of the work was Postma finding source material and establishing a relationship with makers involved in both buildings. The eagle is cast in plaster by the sculptor Andreas Hoferick, using the same mould he employed in the construction of the Humboldt Forum. The cut-out of the Palast der Republikis recreated based on drawings Postma found in the German Federal Archives, employing identical materials to those used in the original building.