He also worked with the Madagascar collections of Christian Rutenberg and the botanical specimens collected by Friedrich Wilhelm Alexander von Mechow and Eduard Teusz in the interior of Angola.
Karl Marx | Otto von Bismarck | August Strindberg | August | Karl Pilkington | Karl Lagerfeld | The Tales of Hoffmann | Otto | Karl G. Heider | Karl Rove | Karl Pearson | Karl May | Karl Liebknecht | Karl Friedrich Schinkel | Karl Dönitz | Karl Jenkins | Otto III | Papal conclave, August 1978 | Otto Piene | Otto I, Holy Roman Emperor | Otto I | Stanisław August Poniatowski | Karl Stefanovic | Otto Preminger | Karl Bodmer | E. T. A. Hoffmann | August Derleth | Pernilla August | Otto II | Otto Dix |