It was Lissitzky's preliminary desi

It was Lissitzky's preliminary design for Dresden that made Dorner decide to invite the Russian to Hanover, and it was there that Lissitzky produced a second version of the cabinet for the display of abstract art, called the Demonstration Room. During this extended stay in Hanover, Schwitters and Lissitzky further developed their friendship. Schwitters had by now also moved away from painting and collage to his own first architectural project, which came to be known as the Merzbau. Beginning in his studio on the ground floor of his own private house, he gradually transformed all aspects of the traditional cubic space of the domestic room into an increasingly distorted, multiperspectival spatial structure, installing wooden, painted reliefs and loading various objects and additional forms into the spaces created.