Letter from Karl Köhler to Hans Gruner Add to clipboard Nachl. 250, Ka. 7, Mp. 34, Blatt 51-52 File 1894-02-12 Part of Berlin State Library. manuscript department hs. Letter from the Director of the Imperial Health Office Karl Köhler on the analysis of food samples In: Nachl. 250 (Hans Gruner) (title) >> Life documents (portfolio 9-37,39-41,44-49,52-56,77; box 17-24) (title) >> Property files (portfolio 34-37,44-49,52-56) (title) Gruner, Hans