Portrait, photogravure, Robert Koch / Photographische Gesellschaft Berlin
This is a print of a photograph of the celebrated German bacteriologist, Robert Koch (1843-1910). The original photograph was taken in Berlin during the latter part of Koch’s life. In 1882, Robert Koch made what is considered to be one of his most famous discoveries when he identified the bacteria that cause tuberculosis. Koch also helped develop and verify the germ theory of disease.