What did Walter Gropius design for the 1914 Werkbund Exposition in Cologne?

For the 1914 Deutscher Werkbund Exposition in Cologne, Walter Gropius designed a model office and factory complex in collaboration with the architect Adolph Meyer.1

Specifically, his contributions to the exhibition included an administrative office building, the Pavilion for the Deutz Machinery Factory, and garages. These structures were noted for their formal design, with some observers suggesting they were influenced by the American architect Frank Lloyd Wright. Together with his earlier work on the Fagus Works, these designs demonstrated Gropius's architectural maturity prior to the outbreak of World War I.21