Eighteen windows designed by Josef Albers in 1926, following the rational aesthetic of Bauhaus. Albers developed a design that was consistently based on the geometric shape of the square and yet was rich in variation. In terms of the balanced, sober-mathematical composition, the formal design of the staircase windows corresponds to the pictures made of flashed glass with the technical precision of sandblasters that Albers developed from the end of 1925. ​​ The Grassi Museum in Leipzig is one of Europe's leading houses of design and applied arts. Their changing exhibitions range from arts and crafts to design, photography and architecture, always intertwined the historical with the contemporary. The permanent exhibition comprises styles such as Art Nouveau, Art Deco and Bauhaus. Currently, the extensive collection consists of approximately 230,000 pieces representative of European and international artisanship dating back to antiquity to the present day.