Flat file, with wooden handle, for use in blowpipe analysis, inside of mahogany case, from analytical chemist’s mahogany cabinet, made by Carl Osterland, Freiberg, Sachsen, Germany, 1850 Flat file, for blowpipe analysis, from analytical chemist's cabinet, by Carl Osterland, Germany, 1850 1850
Round file, with wooden handle, for use in blowpipe analysis, inside of mahogany case, from analytical chemist’s mahogany cabinet, made by Carl Osterland, Freiberg, Sachsen, Germany, 1850 Round file, for blowpipe analysis, from analytical chemist's cabinet, by Carl Osterland, Germany, 1850 1850