Thesis in the age of 20 (about 1932). Busy for the German "Notgemeinschaft" (a Research Foundation). Problems with the Nazis. 1936-1939 Archeological Institute of Germany, Soldier in the war. 1949 Professor. After the war: In Giessen Laboratory for scientific photography. With others 2. founding of the DGD (1. was in 1939/1940). President of the II. International Reprography Congress (vize- President of the I.). 1962-1972 DGD President. 1969-1975 President International Council for Reprography. Since 1952 Working on UDC in FID: 1959-1986 Chair of Committee FID/C3, 1965-1971 Vice-President of FID, 1972-1980 President of FID. Working in UNESCO Committes,... Many awards.